why were scientists so excited about the discovery of hydrothermal vent and cold seep ecosystems? group of answer choices because it provides us with a valuable new food source now that surface fish are becoming scarce because they prove that life exists on other planets and moons because it showed for the first time that ecosystems can exist that are completely independent of

Answers

Answer 1

Scientists were excited about the discovery of hydrothermal vents and cold seep ecosystems: because they showed for the first time that ecosystems can exist that are completely independent of sunlight. The correct option is C.

A hydrothermal vent is a fissure on the ocean floor from which geothermally heated water emits. Hydrothermal vents are located near volcanic hotspots, mid-ocean ridges, and tectonic plate boundaries. Hydrothermal vent ecosystems are unique in that they rely on chemoautotrophic bacteria, which use the energy of the vent's chemicals to create organic molecules, rather than photosynthetic plants or algae.

These bacteria provide the foundation for an entire food chain, supporting the diverse life forms that inhabit these ecosystems. Cold seep ecosystems, on the other hand, are located in the deep sea and are fueled by methane and other hydrocarbon gases that seep up from the seafloor.

These ecosystems are also reliant on chemoautotrophic bacteria, which play a key role in the food web. The discovery of these ecosystems challenged the conventional wisdom that all ecosystems are dependent on sunlight for energy and showed that life can thrive in extreme environments with limited resources.

This discovery also has implications for the search for extraterrestrial life, as it suggests that life could exist in environments previously thought to be inhospitable.

To know more about hydrothermal vents refer here:

https://brainly.com/question/29774125#

#SPJ11


Related Questions

In complete dominance, the dominant character appears with 50% in the second generation, when one pair of pure recessive allelomorphic characters are inherited from the father and hybrid dominant allelomorphic from the mother

How far is this statement correct? With explaination

Answers

Answer: This statement is incorrect. In complete dominance, the dominant allele completely masks the expression of the recessive allele in the phenotype of heterozygous individuals. When a pair of pure recessive allelomorphic characters are inherited from the father and hybrid dominant allelomorphic from the mother, all of the offspring will be heterozygous with one dominant allele and one recessive allele. Therefore, all of the offspring will show the dominant phenotype, and the frequency of the dominant phenotype will be 100% in the second generation, not 50%.

For example, if the pure recessive allele is represented as "aa" and the dominant allele is represented as "A", the father would contribute "aa" and the mother would contribute "Aa" to the offspring. The offspring would inherit one allele from each parent, resulting in the genotypes of "Aa" for all offspring. In complete dominance, the dominant allele "A" would mask the expression of the recessive allele "a", resulting in all offspring having the dominant phenotype. Therefore, the statement that the dominant character appears with 50% in the second generation is not correct.

Which property of a plant species would be most useful for meeting the scientists goal

Answers

The most useful property of a plant species for scientists studying new crops and wanting to apply selective breeding to develop a useful crop plant would be its genetic diversity.

For a team of scientists studying several plant species that they think could become new farm crops and want to apply selective breeding to develop one of the species into a useful crop plant, the most useful property of the plant species would be its genetic diversity.

Genetic diversity refers to the variety of genes, alleles, and genetic traits present within a population or species. This genetic variation is the raw material that plant breeders use to develop new crop varieties with desirable traits, such as higher yield, disease resistance, or better nutritional content.

Know more about selective breeding here: https://brainly.com/question/461245

#SPJ4

(complete question)

A team of scientists is studying several plant species that they think could become new farm crops. The scientists want to apply selective breeding to develop one of the species into useful crop plants. Which property of a plant species would be MOST USEFUL for meeting the scientists’ goal?

The absolute deepest part of the ocean is

Answers

Answer: The challenger deep

Explanation: the Challenger Deep is In the Pacific Ocean, somewhere between Guam and the Philippines, lies the Marianas Trench, also known as the Mariana Trench. At 35,814 feet below sea level, its bottom is called the Challenger Deep — the deepest point known on Earth

Answer:

The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam.

Explanation:

URGENT WILL GIVE BRAINLIEST

Create a question that starts with a command word from the syllabus. Your question needs to be based on the topic of ENERGY SECURITY OR ENERGY INSECURITY.
*Create a POINT VALUE and a MARK SCHEME for the question

*Example of command words: Describe, Explain, Compare, State, Outline, Discuss, Suggest

Answers

Answer:

describe everyday events such as shaving, ear peircing, and brushing teeth so that they do not sound like "primitive" customs.

Explanation:

Command Word: Discuss

Question: Discuss the potential impact of energy insecurity on global economic development.

Point Value: 10 points

Mark Scheme:- Provides a clear definition of energy insecurity (2 points)- Identifies and explains the potential impact of energy insecurity on global economic development (6 points)- Provides relevant examples to support the discussion (2 points)

bacterial cells could have any of the following appendages, except group of answer choices flagella. sex pili. cilia. periplasmic flagella (axial filaments). fimbriae.

Answers

Bacterial cells could not have cilia.

Bacteria are unicellular organisms that lack nuclei and are classified as prokaryotes. They come in various shapes and sizes, ranging from spheres (cocci) to rods (bacilli) to spirals (spirilla). Bacterial cells are frequently provided with various types of appendages to assist in their survival and reproduction.

Flagella, pili, fimbriae, and axial filaments are among the most common bacterial appendages. However, cilia are not among the list of bacterial appendages. They are only present in eukaryotic cells, including animal cells, and are involved in motility, sensing, and other physiological processes.

Flagella: Flagella are long, slender whip-like structures found in some bacteria that are used for locomotion.

Pili: Pili, also known as fimbriae, are hair-like projections that stick out from the bacterial cell's surface. They are used for the attachment of bacteria to surfaces.

Fimbriae: Fimbriae, like pili, are hair-like projections that protrude from the bacterial cell's surface. They play a role in adhesion.

Axial filaments: Axial filaments, also known as peri-plasmic flagella, are long, spiral filaments that wrap around the bacterial cell. They are used for motility, but in a different way than flagella do.

So, Bacterial cells could have any of the following appendages, except cilia.

Know more about cilia here:

https://brainly.com/question/226194

#SPJ11

How does the structure of some freshwater plants help them
maintain their water balance?
A. Stomata are present on the top surfaces of the leaves instead of on the underside.
B. Thick dermal tissue on roots and stems prevents water from seeping in.
c. Large root systems increase the amount of water the roots absorb.
D. Small leaves limit the amount of water loss by transpiration.

Answers

Option C would be the most appropriate answer as it explains how large root systems increase the amount of water the roots absorb in freshwater plants.

What is Stomata?

Stomata (singular: stoma) are tiny pores or openings found on the leaves, stems, and other aerial parts of plants. They are surrounded by specialized cells called guard cells, which regulate the opening and closing of the stomata.

One such adaptation is the presence of large air-filled spaces in their tissues, such as in the leaves, stems, and roots, which provide buoyancy and help the plant stay afloat in water. These air-filled spaces also serve as storage areas for oxygen, which is needed for respiration, and as conduits for the exchange of gases and nutrients between the plant and the water. Additionally, some freshwater plants have developed root systems that are adapted to absorb nutrients and water from the surrounding water, which can be poor in nutrients compared to soil. Therefore, option C would be the most appropriate answer as it explains how large root systems increase the amount of water the roots absorb in freshwater plants.

Learn more about Stomata from the given link

https://brainly.com/question/19393475

#SPJ1

What would you need to add to your brain model in order to create a model of the central nervous system? To which brain area would you connect it?


And my second question is " 4. If you were to add the diencephalon to your model, where would it go? "

Answers

Answer:

First question:

To create a model of the central nervous system, you need to add the spinal cord and connect it to the brainstem in your brain model. The brainstem is responsible for many vital functions and helps integrate and regulate the body's functions.

Second question: The diencephalon goes above the brainstem in the model, contains important structures involved in various functions, and completing the central nervous system representation.

Explanation:

1. The spinal cord is connected to the brainstem, which is the lower part of the brain that is continuous with the spinal cord. Therefore, you would connect the spinal cord to the brainstem in your model of the central nervous system. The brainstem is responsible for many vital functions, such as breathing, heart rate, and blood pressure, and is also involved in the transmission of sensory and motor signals between the brain and the body.

By adding the spinal cord to your brain model and connecting it to the brainstem, you would create a model of the central nervous system that includes both the brain and spinal cord, and their integration and regulation of the body's many functions.

2. If you were to add the diencephalon to your model, it would go above the brainstem, in between the brainstem and the cerebral hemispheres. The diencephalon is a part of the forebrain, and it contains several important structures, such as the thalamus, hypothalamus, and epithalamus. These structures are involved in various functions, including sensory perception, regulation of autonomic processes, and control of the endocrine system. Adding the diencephalon to the model would provide a more complete representation of the central nervous system and its many functions.

Hope this helps! If not, sorry about that! If you need more help you may ask me! :]

What are all the parts of a plant?

Answers

Answer:

Stem.

Estate.

Leaves.

Flower.

Fruit.

Answer:

What are all the parts of a plant?

SeedsLeavesStemsRootsFruitsFlower petals

Explanation:

You're welcome.

Only need help with #1

Answers

Answer:

A) Homologous chromosomes line up at the cell equator.

B) Crossing over can occur during synapsis.

G) The chromosome number is reduced from 2n to n.

Slides: Are there striations across the width of the muscle cells? Number of Nuclei? What are the size, shape, and arrangement of fibers? What function occurs as a result of the contractions in the selected muscle? (see page 3 of the lesson) What is the relationship between structure and function in the selected muscle? (see page 3 of the lesson)
Muscle - Human Cardiac
Intestines - Outer Wall Detail (smooth muscle)
Slide 1: Muscle- Skeletal Longitudinal Section
and
Slide 2: Muscle-Skeletal Cross Section

(The questions are for the muscles listed aboved)

Answers

In skeletal muscle cells, there are striations across the width of the muscle fibers due to the arrangement of myofilaments.

The number of nuclei in each muscle cell is typically multiple, as each cell is formed by the fusion of multiple myoblasts during development.

What is the composition of skeletal muscles?

The size, shape, and arrangement of muscle fibers can vary depending on the type of muscle.

Skeletal muscles are composed of long, cylindrical fibers that are arranged in parallel bundles.

Cardiac muscle fibers are shorter and more branched, forming a network of interconnected cells. Smooth muscle fibers are spindle-shaped and are not organized into distinct bundles or striations.

Learn more about skeletal muscles at: https://brainly.com/question/24655445

#SPJ1

pls help T-T
Iwnsbss

Answers

Answer:

C!

Explanation:

The most common treatment for leukemia is chemotherapy, as stated in the passage, so that would be step 1. If chemotherapy isn't enough, a bone marrow donor is needed in order to introduce healthy leukocytes that can take over - meaning step 2 is finding a donor match. Step 3 would then be to introduce the healthy leukocytes from the donor into the patient's bloodstream, and step 4 has the leukocytes traveling from the bloodstream (step 3) to the bone marrow, where they can begin replicating.

which statement best describes the role of the lung in gas exchange? responses it produces oxygen as a waste product of cellular respiration. it produces oxygen as a waste product of cellular respiration. it extracts oxygen from the atmosphere for use by body cells. it extracts oxygen from the atmosphere for use by body cells. it takes in oxygen from the bloodstream. it takes in oxygen from the bloodstream. it provides carbon dioxide to the capillaries.

Answers

The statement that best describes the role of the lung in respiration is: "it extracts oxygen from the atmosphere for use by body cells".

Gas exchange is the transfer of oxygen and carbon dioxide between living organisms and their environment. This is done by the respiratory system in animals, and in plants by photosynthesis. In animals, oxygen is extracted from the atmosphere by the lungs, which is then circulated throughout the body via the bloodstream.

Similarly, carbon dioxide is removed from the bloodstream by the lungs and released into the atmosphere. This process is critical for the survival of all living organisms.

The primary function of the lungs is to facilitate respiration, which is the process of exchanging gases between the atmosphere and the body's cells. This is achieved through a complex system of airways and blood vessels that allow for the transfer of gases in and out of the bloodstream.

Specifically, the lung extracts oxygen from the atmosphere through the trachea, bronchi, and bronchioles, which are then delivered to the bloodstream via the pulmonary capillaries. The carbon dioxide that is produced by cellular respiration is then removed from the bloodstream by the lungs and released into the atmosphere.

Learn more about respiration: https://brainly.com/question/18169685

#SPJ11

Pls help thank you will mark the brainliest

Answers

Answer:

Here are the biological classifications in order from most specific (1) to most general (8):SpeciesGenusFamilyOrderClassPhylumKingdomDomainNote: The phrase "King Philip Cried Out For Good Soup" can be helpful to remember the order of Kingdom, Phylum, Class, Order, Family, Genus, and Species, but it does not include the most general category, Domain.

Explanation:

It’s:
1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus
7. Species

You can use this, I use it to remember the botanical classification.

“Kings Play Chess On Fat Green Stools”
“King Philip Cried Out For Good Soup”
Although none of these talk about domain.

Please mark me Branliest

Which statement explains one reason why unconformities occur

Answers

Unconformities occur when there is a gap in the geological record, which can happen for a variety of reasons. One reason why unconformities occur is due to erosion, which can remove layers of rock and sediment, creating a gap in the geological record. This erosion can occur due to natural processes, such as wind, water, and ice, or due to human activities, such as mining or construction. Another reason why unconformities occur is due to tectonic activity, which can cause rocks to be uplifted and deformed, leading to a break in the geological record. Finally, unconformities can occur due to changes in sea level, which can cause sediment to be deposited in some areas and eroded away in others, creating a gap in the geological record.

An object traveling 200 m/s slows down to 50 m/s, in 5 seconds. Calculate the acceleration of the object.

Answers

Answer:

-30 m/s^2

Explanation:

The acceleration of the object can be calculated using the formula:

a = (v_f - v_i) / t

where v_i is the initial velocity, v_f is the final velocity, and t is the time taken for the change in velocity.

Given that the object is traveling at an initial velocity of 200 m/s and a final velocity of 50 m/s, and it takes 5 seconds to slow down, we have:

a = (50 m/s - 200 m/s) / 5 s

a = (-150 m/s) / 5 s

a = -30 m/s^2

Therefore, the acceleration of the object is -30 m/s^2. The negative sign indicates that the object is decelerating, or slowing down.

in a green plant, the majority of photosynthesis takes place in

Answers

In a green plant, the majority of photosynthesis takes place in the chloroplasts of the leaves.

Specifically, the chlorophyll pigments within the chloroplasts absorb light energy from the sun and use that energy to convert carbon dioxide and water into glucose (a simple sugar) and oxygen gas. This process is known as photosynthesis and is crucial to the survival of plants, as well as many other organisms that rely on them for food and oxygen. While photosynthesis occurs in other parts of the plant, such as the stem and roots, the leaves are the primary site of photosynthesis in most green plants.

To learn more about photosynthesis here:

https://brainly.com/question/29764662

#SPJ1

List 6 pros and 6 cons of a virus in the human body

Answers

Answer:

Viruses keep us alive. They form part of the body's microbiome and safeguard our health. They can be harnessed to treat illness, deliver vaccines, and diagnose infections. They're wielded as research tools to illuminate biology and disease and develop new drugs.

Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, Ebola, and COVID-19. Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves.

fill in the blank. when rent is paid in advance for 2 years, it is appropriately recorded as a(n)___ , whereas when rent is paid and used during one month, it is appropriately recorded as a(n) ___. (enter one word per blank)

Answers

When rent is paid in advance for 2 years, it is appropriately recorded as a(n) asset, whereas when rent is paid and used during one month, it is appropriately recorded as a(n) expense.


An asset is something that has value and is owned by a business. When rent is paid in advance for 2 years, it is considered an asset because the business has the right to use the rented space for the next 2 years.

Any resource that a company or other economic organisation owns or controls is considered an asset in financial accounting. Anything that has the potential to provide positive economic value qualifies. The ownership value that can be turned into cash is represented by assets.

An expense is a cost that is incurred in order to generate revenue. When rent is paid and used during one month, it is considered an expense because the business is using the rented space to generate revenue during that month.

An expense is something that calls for the transfer of funds, or fortune in general, from one person or organisation to another as payment for a good, service, or other type of cost. Rent is a cost to a tenant. Tuition is a cost to parents or students.

To know more about Asset and expenses here:

https://brainly.com/question/14435608#

#SPJ11

Papaya plants get infected with the papaya ringspot virus, which causes the leaves to have dark spots and the fruit to have bumps. Scientists introduce the DNA of the ringspot virus into the genome of papaya plants to develop genetically modified (GM) papaya plants that are resistant to papaya ringspot virus. Which is a likely ethical concern regarding the use of GM papaya? A GM papaya plants might produce fruits with fewer nutrients. B Consumers may unknowingly consume unwanted GM papaya. C GM viruses may evolve to harm other plants. D The soil in which GM papaya plants are grown may become infertile.

Answers

If scientists introduce the DNA of the ringspot virus into the genome of papaya plants to develop genetically modified (GM) papaya plants that are resistant to papaya ringspot virus, then a likely ethical concern regarding the use of GM papaya is  B Consumers may unknowingly consume unwanted GM papaya.

What are GM crops?

Genetically modified crops are organisms whose DNA has been modified by genetic engineering techniques in a laboratory of molecular biology, which raises concerns for a sector of the population.

Therefore, with this data, we can see that GM crops may lead to concerns regarding their consumption.

Learn more about GM crops here:

https://brainly.com/question/9779863

#SPJ1

What effect does ionizing radiation have on the atmosphere ?
i need three at the least​

Answers

Ionizing radiation can the  following three effects on the atmosphere:

Creation of ionsFormation of free radicalsOzone depletion

What effect does ionizing radiation have on the atmosphere?

Ionizing radiation can have several effects on the atmosphere, including:

Creation of ions: Ionizing radiation can break apart molecules in the atmosphere, such as nitrogen and oxygen, creating charged particles called ions. These ions can then react with other molecules in the atmosphere, leading to the formation of new compounds.

Formation of free radicals: Ionizing radiation can also generate free radicals, which are highly reactive atoms or molecules that can participate in chemical reactions. These free radicals can react with other molecules in the atmosphere, leading to the formation of new compounds and potentially causing damage to biological organisms.

Ozone depletion: High-energy ionizing radiation can break apart ozone molecules in the atmosphere, leading to a reduction in the amount of ozone in the ozone layer. This can have significant consequences for life on Earth, as the ozone layer helps to protect the planet from harmful ultraviolet radiation from the sun. Ozone depletion can lead to an increased risk of skin cancer, cataracts, and other health problems in humans and animals.

Learn more about ionizing radiation at: https://brainly.com/question/17095776

#SPJ1

Why do we use Punnett Squares today? Explain in your words
how it works? Use the back of the page to illustrate.

Answers

Punnett squares are used today as a tool in genetics to predict the probability of offspring inheriting specific traits from their parents.

How do Punnett squares work?

It works by crossing two individuals and then arranging their possible gametes (sperm and egg cells) along the top and side of a square grid. By combining the gametes in the grid, the potential genetic makeup of the offspring can be visualized and predicted.

Each gamete is represented by a letter or symbol to denote its allele (variant form of a gene). For example, if we are studying a trait that is controlled by a single gene with two possible alleles, we might represent the dominant allele with a capital letter (e.g., A) and the recessive allele with a lowercase letter (e.g., a). The possible gametes for an individual with genotype Aa would be represented as half A and half a.

To use the Punnett square, we simply write the possible gametes of one parent along the top of the square and the gametes of the other parent along the side of the square. We then fill in the boxes of the grid with the combination of gametes that would result from each pairing. By counting the number of boxes that contain each possible genotype (the genetic makeup of an individual), we can calculate the expected proportions of offspring that would have each genotype.

Learn more about Punnett squares here:

https://brainly.com/question/27984422

#SPJ1

Which statement best describes a keystone species?

A. It has little genetic variation.
B. It has an extremely high population.
C. It remains unaffected by all environmental changes.
D. It has a strong influence on the ecosystem.
E. It’s the first species to populate a new ecosystem.

Answers

The right response is D. A keystone species is one that, in spite of its relatively low abundance, has a disproportionately substantial impact on the composition and operation of an ecosystem.

What is an example of a keystone species?

The intricate web of connections that makes up an ecosystem is held together by keystone species. They could be microbes, plants, or animals. Sea otters, wolves, elephants, and starfish are a few examples of keystone species.

What traits distinguish keystone species?

A keystone species is any animal, plant, fungus, or even bacteria that significantly alters its ecology. Due to the ability of their influence on other species to alter entire ecosystems, they play a significant role in their natural settings.

What are the keystone species in India?

In the jungles of India and Nepal, the tiger is the dominant predator. The tiger is a keystone species, which is more significant.

learn more about keystone species here

https://brainly.com/question/506554

#SPJ1

A women with blood type AB is planning to have a family with a man who is blood type O. How many different phenotypes could their children have?
A- 2
B- 1
C- 3
D- 4

Answers

A woman with blood type AB can pass either an A or a B allele to her child. A man with blood type O can only pass an O allele to his child. This couple could have children of either blood type A (O from father and A from mother) or blood type B (O from father and B from mother). So the answer is A- 2 different phenotypes for their children.

PLS HELP.
Research Alexa Canady, and
write at least 5 complete
sentences about her
accomplishments and/or
how this personally Inspires
you.

Answers

Answer:

Alexa Canady is a renowned African-American neurosurgeon who made significant contributions to the field of medicine. She was the first African-American woman to be certified as a neurosurgeon in the United States. Canady was born in 1950 in Michigan and studied at the University of Michigan before earning her medical degree at the university's medical school. She went on to complete her residency in neurosurgery at the University of Minnesota. During her career, Canady was known for her expertise in pediatric neurosurgery and made significant advances in the treatment of brain tumors and other neurological conditions in children. She was also an advocate for diversity in the medical profession and worked to inspire and support underrepresented groups pursuing careers in medicine. Canady's achievements and groundbreaking career in a male-dominated field are an inspiration to many, particularly women and minorities who face barriers in pursuing their professional goals. Her dedication to advancing medical science and improving the lives of patients is a testament to the impact that one person can make in their field.

Amensalism and commensalism are similar in that one of the organisms in the relationship is completely unaffected: it is neither harmed not helped by it. Given this information, what differentiates amensalism from commensalism?

A.
An amensal relationship requires the unaffected organism to provide a service to the other organism.
B.
An amensal relationship requires the unaffected organism to provide a resource to the other organism.
C.
An amensal relationship benefits the other organism in some way.
D.
An amensal relationship harms the other organism in some way.

Answers

An amensal relationship harms the other organism in some way.

The correct option is D.

Where do organisms live?

An organism forms its operational hub in a habitat. A habitat provides the ideal conditions for an organism to survive. It refers to just about everything an animal needs in order to find and gather food, select a mate, and successfully reproduce.

Where are organisms made of?

Every living creature is made up of cells, which are seen as the fundamental building blocks of life. Even single-celled organisms are complex! The cellular organelles and structures found inside each cell are made up of molecules, which are created by atoms. In multicellular organisms, similar cells create tissues.

To know more about Organisms visit:

https://brainly.com/question/13278945

#SPJ1

You are working with a population of snails. During the mating season, you observe that individuals in the population will only mate with others of the same genotype (for example, Mm individuals will only mate with Mm individuals). There are only two alleles at this locus (M is dominant; m is recessive); you have determined that the frequency of the M allele = 0.4 and that selection acts against homozygous recessive individuals. Consider what will occur in this population over the course of many generations, and evaluate the following statement.
TRUE OR FALSE: Allele frequencies will stay the same, but genotype frequencies will change over time.

Answers

The statement 'Allele frequencies will stay the same, but genotype frequencies will change over time' is FALSE because In this scenario, allele frequencies will change over time due to the selection against homozygous recessive individuals.

As a result, the frequency of the M allele will increase and the frequency of the m allele will decrease. This will also cause a change in genotype frequencies, as the proportion of Mm individuals will decrease and the proportion of MM individuals will increase. Therefore, both allele and genotype frequencies will change over time in this population.

Here is a step-by-step explanation:
1. Selection acts against homozygous recessive individuals (mm) in the population.
2. This will cause a decrease in the frequency of the m allele over time, as fewer individuals with this allele will survive to reproduce.
3. As the frequency of the m allele decreases, the frequency of the M allele will increase.
4. This will also cause a change in genotype frequencies, as the proportion of Mm individuals will decrease and the proportion of MM individuals will increase.
Therefore, both allele and genotype frequencies will change over time in this population.

To know more about Allele frequencies here:

https://brainly.com/question/29563534#

#SPJ11

A ______ is a stack of _______ that provides the chloroplasts with increased surface area.
A. thylakoid, granum
B. granum, thylakoid
C. granum, chlorophyll
D. thylakoid, chlorophyll

Answers

The answer is B. Granum, thylakoid.



Your lab group hypothesizes that psychological stress has a greater impact on heart rate than physical stress. Does the data collected support this hypothesis?

Answers

The psychological stress has a greater impact on heart rate than physical stress is true and is followed by the given hypothesis.

The most frequent way to study cardiovascular responsiveness to stress is in the laboratory. Due to the numerous restrictions of functioning in controlled conditions, laboratory stressors may have limited ecological relevance. This presentation will concentrate on paradigms that include measuring cardiovascular responses to stress in real time with ambulatory monitors.

The most widely employed paradigm in this subject is to assess the reaction to a specific real-life stressor, such as taking a test event giving a presentation. A broader approach has attempted to develop a measure of CV variability by testing the premise that more reactive individuals will have a more varied heart rate or blood pressure.

According to the widely accepted cardiovascular reactivity theory, those who exhibit increased cardiovascular reactivity (CVR) to stress are more likely to acquire cardiovascular disease (CVD) (Krantz and Manuck, 1984; Treiber et al., 2003). The majority of investigations on the cardiovascular response to stress are undertaken in a controlled laboratory setting. There are strong practical and scientific reasons for this, based on measurement, design, and control difficulties, but the laboratory is a particularly challenging place in which to research stress.

Learn more about Stress:

https://brainly.com/question/4418699

#SPJ4

MS74 students love going to outdoor lunch, but meteorologists reported a potential heavy downpour midday today. Which device would Mr. Contarsy best rely on in order to determine whether or not students can have outdoor lunch around noon and why?

Answers

Mr. Contarsy would best rely on a weather radar in order to determine whether or not students can have outdoor lunch around noon.

A weather radar uses radio waves to detect precipitation and can provide information on the location, intensity, and movement of weather systems. This information can be used to predict when and where precipitation will occur.

In contrast, other weather instruments, such as a thermometer or barometer, only measure specific aspects of the weather, such as temperature or air pressure, and do not provide information on precipitation

By monitoring the weather radar, Mr. Contarsy can determine if and when a heavy downpour is likely to occur. This will allow him to make an informed decision about whether or not to cancel outdoor lunch or to move it indoors.

Additionally, a weather radar can provide up-to-date information on the weather conditions, allowing Mr. Contarsy to adjust his plans accordingly. For example, if the radar indicates that the rain will pass quickly, he may decide to delay lunch for a short period of time to wait out the storm.

To know more about the Meteorologists, here

https://brainly.com/question/2542007

#SPJ4

Fetal lung maturity can be determined from amniotic fluid because the surfactant is PRIMARILY composed of:

Answers

Fetal lung maturity can be determined from amniotic fluid because the surfactant is PRIMARILY composed of phospholipids

What is the main function of phospholipids?

A group of lipids known as phospholipids are crucial elements of cell membranes, maintaining both the structure and function of the membranes. Phospholipids serve as the primary component of a lipid bilayer that separates the interior of the cell from the external environment and controls the flow of molecules and ions into and out of the cell. Water-soluble molecules cannot cross the membrane because of the barrier made by the hydrophobic tails of the phospholipids, which face one another. The phospholipids' hydrophilic heads are directed towards the intracellular and extracellular fluids, where they interact with water molecules to keep the membrane stable. Phospholipids also act as signalling molecules, controlling a number of cellular processes including cell division, growth, and apoptosis.

To Know more about phospholipids Visit:

brainly.com/question/14949280

#SPJ1

Other Questions
Lesson Review Directions: Simplify the following expressions. Refer to the rules for signed numbers in solving these problems. Example: - 4 + 5 = +1 (the signs are different, take the difference (subtract) and place the sign of the larger number) 1. + 6 - (+3) = 2. + 10 + (-10) = 3. - 3 + (-3 ) = 4. + 24 - 21 = 5. - 48 - (-44) = 6. -12 - (-4 ) + 3 = 7. + 16 -(-15) = 8. - 35 - (-36) = 9. -6 * 10 = 10. -10 * -10 = 11. + 7 * - 7 = 12. -4 / -4 = 13. -6 * - 5 = 14. -10 * + 7 = 15. -4 * - 7 = Intro to Material management - Case Study 5.1: 1) Pick a workcenter or piece of equipment that has caused some capacity problemin recent past. List all the product models that use that workcenter. An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $2000 and his stock in Company B was worth $4240. The stock in Company A has increased 1% since last year and the stock in Company B has increased 5%. What was the total percentage increase in the investor's stock account? Round your answer to the nearest tenth (if necessary). Find the common difference Fill in the correct interrogative according to the context and response. Use correct spelling and accent marks. Help please 10 and 11 The polygons below are similar, but not necessarily drawn to scale. Find the values of x and y. (Does anybody know how to do all, or at least most of the work out?) Answer the question & Fill in the blanks:Translation begins at the start codon which is typically AUG, a process called ______.Translation ends at the stop codon of the mRNA strand, which can be UAA, UAG, or UGA, a process called________.Are the bases on the mRNA strand identical or complementary to the DNA strand template? An angle measuring (468n) is in standard position. For which value of n will the terminal side fall on the x-axis?n = 4n = 5n = 6n = 7 "The Days Gone By"O the days gone by! O the days gone by!The apples in the orchard, and the pathway through the rye;The chirrup of the robin, and the whistle of the quailAs he piped across the meadows sweet as any nightingale;When the bloom was on the clover, and the blue was in the sky,And my happy heart brimmed over in the days gone by.Which figurative language device is present in the bolded words? The bolded words are quailchirrup Allusion Idiom Meiosis Onomatopoeia How do we know that bowl was thrown in gonk frame 2 1c) An agreement to provide fire tender services to a local landowner group. To do so you will need to buy a new tender (truck with a water tank) which would cost $200,000 now and require annual maintenance expenditures of $1,000 per year (starting at the end of the first year) and an additional cost of $5,000 every fourth year (starting at the end of the fourth year). The annual revenue you receive from the landowners is $50,000 per year. What is the Benefit Cost Ratio for the agreement in perpetuity? What similar attitudes about climate change do you see between Bev in Quiet Town and the real-life residents quoted in The Sea Also Rises? To what degree are they responsible for the situation they are in? To what degree are they helpless?In 6-8 sentences. during the yeast fermentation lab, why did glucose show a higher rate of fermentation than starch? multiple choice starch is a disaccharide. starch is a polysaccharide. glucose is a disaccharide. glucose is a polysaccharide. A bear walks 9 meters north, stops to munch on some berries, then walks another 12 meters north. What is the bear's total distance travelled AND his displacement? (4. 26) Some studies have suggested that a nightly glass of wine may not only take the edge off a day but also improve health. Is wine good for your health? A study of nearly 1. 3 million middle- aged British women examined wine consumption and the risk of breast cancer. The researchers were interested in how risk changed as wine consumption increased. Risk is based on breast cancer rates in drinkers relative to breast cancer rates in nondrinkers in the study, with higher values indicating greater risk. In particular, a value greater than 1 indicates a greater breast cancer rate than that of nondrinkers. Wine intake is the mean wine intake, in grams per day, of all women in the study who drank the same amount of wine per week. Here are the data ( for drinkers only): Wine intakex( grams per day) 3 9. 5 15 26 Relative risky 1. 00 1. 08 01. 13 1. 23 Find the correlation r ( 0. 001) between wine intake and relative risk: r= Do the data show that women who consume more wine tend to have higher relative risks of breast cancer? Yes No Which of the following best explains why electrometallurgy is a useful process in many industries?Electrometallurgy can etch permanent marks and designs into the surfaces of metal products.Electrometallurgy can create a thin film around metals, preventing rusting and other forms of corrosion.Electrometallurgy can refine a wide range of impure metals used in manufacturing, wiring, and many other applications.Electrometallurgy can split water molecules into a cheap source of oxygen gas that can be carried into space and beneath the ocean. 3. How is a cost-benefit analysis used to make rational decisions?4. How does increased productivity lead to lower prices for consumers?5. How do consumers benefit from e-commerce? Refer to Figure 3. Which of the following statements is correct?O A. To induce firms to internalize the externality in this market, the government should offer a subsidy measured by P - PoB. To induce firms to internalize the externality in this market, the government should impose a tax measured by P - Po.C. To induce firms to internalize the externality in this market, the government should impose a tax measured by P2 - P.D. There is no externality in this market. home Gates its character from its residents give your thoughts on this quote write about a house you visited that has created a long lasting impression complete the sentence with the past perfect verb though doctors (know) for decades that a change in diet could reduce thesymptoms of celiac disease, it wasn't until the 1950s that the disease was linked to wheat proteins.