Answer:
This shows that over time, some insects can become "pesticide-resistant" meaning that pesticides don't affect them anymore. And this only happens every few generations. Therefore, each generation is being naturally selected and accumulating variations that make them resist the chemicals. This shows that each cockroach's genes are changing to give them variation from the rest of the population.
I hope this helps!
Part F
The rate at which an object weathers is determined by many different variables. For example, compare the two ancient
Egyptian structures below.
Both structures were carved in Egypt from the same type of rock more 1,000 years ago. However, the obelisk in New York
which was transported there from Egypt in 1881, has since experienced a much higher rate of weathering. What factors
likely sped up the weathering process for the structure that was moved to New York?
Answer:
One thing that can speed this is up is a building not being vacant or being in direct sunlight for far too long.
I think this is what you need, right?
Our early atmosphere was anoxic- without free oxygen; how did this change?
A primitive organisms carrying out chemosynthesis
B primitive organisms carrying out photosynthesis
C primitive organisms carrying out cellular respiration
OR A AND B
Answer:
B
Explanation:
Our early atmosphere was anoxic and primitve organisms carried out photsynethess.
unifying scientific explanation supported by testing
Unscramble the word.
RYTHOE
Answer:theory
Explanation:
it stood out to me
Which option provides the correct order of the subgroups for the classification of living things that are nested within the category Family,
from broadest to narrowest?
O Genus, Species
O Class, Order
Order, Genus
O Domain, Kingdom
Genus, species provide the correct order
of the subgroups for the classification of living things that are nested within the category Family,from broadest to narrowest.
What is classification of living organism?Classification of organisms refers to the systematic way organisms are classify base on their characteristics.
The taxonomic rank used while classifying organisms and employ by the nomenclature codes. The ranks in descending order are: life, domain, kingdom, phylum, class, order, family, genus, and species, with order fitting in between class and family.
Therefore, Genus, species provide the correct order of the subgroups for the classification of living things that are nested within the category Family.
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Lyme disease is an example of a(n) ______ infectious disease, because it is only seen in areas of the US where the tick vector for the pathogen is found.
Lyme disease is an examples of vector borne infectious disease.
What is Lyme disease?Lyme disease is also called Lyme borreliosis, is an example of a vector-borne disease whose causative agent is Borrelia bacterium and it is transmitted by tick in the genus Ixodes. The common sympyoms of the infection is red rash, known as erythema migrans, which appears at the site of the tick bite.
Therefore, Lyme disease is an examples of vector borne infectious disease.
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Lyme disease is a disease transmitted by the bite of an infected tick and is an example of an endemic infectious disease.
What is an endemic infectious disease?It refers to the constant presence and/or habitual prevalence of a disease or an infectious agent in a population of a geographic area.
Lyme disease is a borreliosis transmitted by ticks of the genus Ixodes that seems to be limited to certain geographic areas of the US, therefore it is considered endemic.
Therefore, we can conclude that Lyme disease is a disease transmitted by the bite of an infected tick and is an example of an endemic infectious disease.
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A single-cell organism can do everything a cell from a multicellular organism can do except
Answer:
specialize
Explanation:
What natural features are important in the transfer of sand from one side of an inlet to the other:
Answer:
What causes sand to move along a beach?
Sand grains move along the shore and up and down beaches because of currents made by waves. Waves break when they reach shallow water, creating turbulence. This area is called the surf zone. When waves break, some of the force is turned into currents
The natural features that are important in the transfer of sand from one side of an inlet to the other may include weathering and erosion.
How does sand move along a beach?Sand grains move along the shore and up and down beaches because of currents made by waves. Waves break when they reach shallow water, creating turbulence. This area is called the surf zone. When waves break, some of the force is turned into currents.
Most beaches get their sand from rocks on land. Over time, rain, ice, wind, heat, cold, and even plants and animals break the rock into smaller pieces. This weathering may begin with large boulders that break into smaller rocks. Water running through cracks erodes the rock. They also prevent seawater from entering wells and ponds.
Therefore, the natural features that are important in the transfer of sand from one side of an inlet to the other may include weathering and erosion.
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1. Brittle deformation is generally seen in
a. rocks far below Earth's surface
b. rocks with strong internal molecular bonds
c. limestone and schist
d. gypsum and shale
Answer:
Brittle deformation is seen in - Rocks that are present far below the earth's surface.Explanation:
option a is correctAnswer:
(b) rocks far below Earth's surface
Which hormone produced by the kidneys stimulates hematopoiesis.
Answer:
Erythropoietin hormone
What candy, in high doses, can cause abnormal heart rhythms, as well as high blood pressure?.
Answer:
Eating more than 57g (2 ounces) of black liquorice a day for at least 2 weeks could lead to potentially serious health problems, such as an increase in blood pressure and an irregular heart rhythm (arrhythmia).
Explanation:
Which is required for all organisms to survive?
Question 1 options:
Carbon dioxide
Water
Sunlight
Blood
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
For a Normal living organism to survive, each of the above necessities are important.
Therefore, we can say : it's All of these
Explain the importance of your group using your cut leaf and not the cut leaf from another group to determine surface area.
Answer:
leaf sizes vary
Explanation:
all leaves can never be the same
Weathering, erosion, and deposition are three natural processes that change the face of the Earth.
Look at the three examples below and identify which process they each represent.
Explanation:
Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion.
How do the circulatory system and immune system work together to respond to an injury?
A Increased blood flow kills healthy cells which prevents infection at the site of the injury
B Increased blood flow removes infected cells from the body at the site of the injury.
C Increased blood flow carries white blood cells to the site of the injury.
D Increased blood flow allows for an increase in the exchange of o, and co, at the site of the
injury
Answer:
C. Increased blood flow carries white blood cells to the site of the injury.
Explanation:
This is a ___________ gibbous moon.
a) crescent
eliminate
b) new
c) waning
d) waxing
This is a new gibbous moon.
During signal transduction in a rod cell, the sensory signal is amplified when:.
Answer:
it's amplified when there is results in hyperpolarization of the sensory cell.
In recent decades, average global temperatures have increased significantly. Scientists agree that the widespread destruction of the Amazon rain forest contributes to climate change. Which mechanism might be cited to support that hypothesis?
A Deforestation causes water on the ground to reflect sunlight.
B Deforestation reduces the number of plants able to absorb carbon dioxide.
C Photosynthesis produces energy, which gives off heat.
D Plants use up energy during cellular respiration.
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
The main reason causing average global temperature rise is increase in amount of green house gases like Carbodioxide, and since deforestation reduces a vast number of plants, so there is lack of plants absorbing CO2 causing this whole thing.
So, according to this the Correct choice is B
The mechanism that supports the hypothesis that the widespread destruction of the Amazon rainforest contributes to climate change is Deforestation reduces the number of plants able to absorb carbon dioxide. The correct option is B.
Forests, like the Amazon rainforest, play a crucial role in mitigating climate change because trees act as carbon sinks. They absorb carbon dioxide during photosynthesis and store it as biomass. When forests are cut down or destroyed through deforestation, the carbon stored in trees is released back into the atmosphere in the form of carbon dioxide, a greenhouse gas that contributes to global warming.
The Amazon rainforest, often referred to as the "lungs of the Earth," is particularly vital in this regard because of its vast size and high biodiversity. As large areas of the forest are cleared for logging, agriculture, and other human activities, the ability of the Amazon to absorb carbon dioxide diminishes, leading to increased greenhouse gas concentrations in the atmosphere and contributing to the warming of the planet.
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The magnetic force will push magnets apart if you hold the
Your answer:
north poles of two magnets close together.
south poles of two magnets close together.
north pole of one magnet near the south pole of another magnet.
Both (a) and (b)
Answer:
D. both a and b
Explanation:
If you hold the north poles of two magnets close together, the magnetic force will push the magnets apart. The same is true if you hold the south poles close together. If you hold the north pole of one magnet close to the south pole of another magnet, the magnetic force will pull the magnets together.
What are some ways that scientists and engineers are using our understanding of DNA?
What is the correct order of structures that a piece of food would encounter as it travels through the alimentary canal of a bald eagle?.
The correct order of structures is mouth, oesophagus, crop, stomach(proventriculus), gizzard, intestine, and anus.
The digestive tract of birdsThe digestive tract of birds starts from the mouth and ends at the anus.
As the food enters the oesophagus through the mouth, it is pushed down to the first stomach called the proventriculus.
Hydrochloric acid, mucus and a digestive enzyme, pepsin, are secreted by specialized cells in the proventriculus and start the process of breaking down the structure of the food material.
Food substances that are hard to digest are transferred to the gizzard. Nutrients are absorbed in the intestines and undigested food substances are removed through the anus.
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Which method is best for seperating salt and breadcrumbs?
Answer:
Filtering to obtains breadcrumbs and the heat the salt solution to saturation and cool it
What nonrespiratory air movement is due to a spastic contraction of the diaphragm while the glottis is closed
Answer:
Hiccup is what a nonrespiratory air movement is due to a spastic contratction.
Based on your knowledge of energy flow and light absorption, which color(s) of light will not provide energy for photosynthesis? (select all that apply) question 3 options: red orange green blue violet
Answer:
Red light has the longest wavelength and the least energy, while violet light has the shortest wavelength and the most energy.
Explanation:
Yw
Answer:
RED and BLUE
Explanation:
Special pigments in chloroplasts of plant cells absorb the energy of certain wavelengths of light, causing a molecular chain reaction known as the light-dependent reactions of photosynthesis. The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).
What are ecosystem services? provide two examples and explain how these services benefit people. (site 1)
Ecosystem services is an expression that makes reference to different uses derived from the natural environment (ecosystems).
What are ecosystem services?The expression 'Ecosystem services' makes reference to different uses that humans make from the natural environment.
These services include has both social and economic importance for human activities (e.g., tree extraction and deforestation).
Thus, Ecosystem homeostasis is fundamental for the development of a society and it should not be exploited.
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Answer:
Ecosystem Services refer to the benefits that humans receive from the natural environment. They are the various processes and functions that ecosystems provide, such as the purification of air and water, nutrient cycling, and the provision of food, fuel, and fiber. Ecosystem Services are crucial for human survival and well-being, and they are essential for maintaining the balance of the planet's natural systems. One example of an ecosystem service is the pollination of crops by bees and other insects. Pollinators are responsible for fertilizing flowers, which allows plants to produce fruits, vegetables, and seeds. Without pollinators, many crops would not be able to produce a yield, resulting in a significant reduction in food production. Additionally, pollinators are essential for maintaining the diversity of plant species, which is essential for the health of ecosystems. The economic value of pollination services has been estimated to be worth billions of dollars annually. Another example of an ecosystem service is the role of wetlands in mitigating flooding and reducing erosion. Wetlands act as natural sponges, absorbing and storing water during heavy rainfall and releasing it slowly over time. This helps to reduce the risk of flooding downstream and prevents soil erosion. Wetlands also provide important habitats for a diverse range of plant and animal species, which supports the overall health and resilience of ecosystems. The economic value of wetlands in terms of flood control and erosion prevention has been estimated to be worth billions of dollars. In conclusion, ecosystem services are essential for human well-being and the health of the planet's natural systems. They provide a wide range of benefits, including food production, water purification, flood control, and erosion prevention. The examples of pollination and wetlands demonstrate how ecosystem services benefit people by supporting food production and reducing the risk of natural disasters. It is important to recognize the value of ecosystem services and to take steps to protect and conserve them for future generations.
Explanation: 100% on edge!
The hormone ________ signals feelings of fullness to the brain.
Answer:
leptin
Explanation:
Another hormone, Leptin, produced by fat cells, is an Adiposity signal that communicates with the brain about long-range needs and satiety, based on the body's energy stores. Research suggests that Leptin amplifies the CCK signals, to enhance the feeling of fullness
Julia made a model of a cell in a clear plastic zipper bag. She used a marble for the nucleus and pinto beans for mitochondria.
Which of the following options would be best for making her model more like a plant cell?
A.
Put the bag inside a clear plastic box.
B.
Put the bag inside a larger clear plastic bag.
C.
Take the marble out of the bag.
D.
Take the pinto beans out of the bag.
Answer:A
Explanation:I did this 1
What is the first part of an experiment and
becomes the basis of what you are testing?
A. the results of the experiment
B. the dependent variable
C. a hypothesis
D. the control group
True or False water particles are not actually water molecules
True or false
True because the water molecules are only present in condensation processes and within droplets of water.
What is one potential benefit and one potential negative impact of genetically engineering crops?
Answer:
potential benefit: more nutritious food
potential negative impact:biodiversity loss
Identify three functions preformed by organ systems
The question you've asked is not clear, you haven't specified which organ system are you talking about. No worries, I've noted down key functions of 11 organ systems of the human body, you can pick any of them that you want.
Some of the main functions of the 11 organ systems include the following:
Skeletal system:
shape/support for the body
protect some organs (brain, heart, lungs, spinal cord, etc.)
mineral storage (e.g., Ca and P)
site for muscle connections
site for blood cell formation
Muscular system:
movement
since there are three types of muscle—cardiac, smooth, and skeletal—there are specific functions for all of these
Cardiovascular system:
pump blood throughout the body
the blood will transport nutrients, oxygen, waste, and hormones
the blood also functions as a part of the immune system and allows the white blood cells/antibodies to gain access to infected/wounded areas
Excretory system:
produce and store urine in the kidneys and bladder
release urine through the urethra
Digestive system:
digest food into nutrients that can be absorbed
absorb nutrients
make certain vitamins (e.g., Vitamin K is made by bacteria in the large intestine)
Reproductive system:
the main function here is to produce offspring
another function—in line with the endocrine system— is to make hormones (e.g., testosterone and estrogen, which affect male and female characteristics)
Endocrine system:
hormone production
these hormones act throughout the body performing multiple jobs (e.g., blood sugar levels [insulin/glucagon], growth [growth hormone], male characteristics like facial hair [testosterone]
Integumentary system:
this is the skin
protection from some pathogens (unless you get a cut)
sensations at the skin level (texture, heat, pressure, pain)
Nervous system:
made of the central (brain and spinal cord) and peripheral nervous systems
this system transmits signals from one part of the body to another and this includes your senses
Respiratory system:
this mainly includes your lungs and trachea
the main function is the exchange of gases (oxygen and carbon dioxide)
Immune system:
the main function is to defend the body against pathogens
this is done with the help of the cardiovascular system which has white blood cells and antibodies in the blood