Answer:
1 minute
Explanation:
It takes one minute for blood to circulate from the heart.
The average adult's heart beats 100,000 times per day.
What would be the strand of dna replicated from ATCGGATTTACCG
Answer:
The new DNA strand will have the bases GATCCA.
Explanation:
Adenine (A) always pairs up with thymine (T), and guanine (G) will always pair up with cytosine (C).
(Adenine and Thymine have only two places to form hydrogen bonds, whereas Guanine and Cytosine have three places. )
hope this helps in some way
Use the graph below to determine the range of values in which the LD50 of this pollutant lies. Dose-response curve shows twenty percent of the population died when exposed to thirty-eight milligrams of pollutant A per kilogram of water. Forty percent of the population died when exposed to forty-two milligrams of pollutant A per kilogram of water. Sixty percent of the population died when exposed to fifty-five milligrams of pollutant A per kilogram of water. Eighty percent of the population died when exposed to sixty milligrams of pollutant A per kilogram of water. One hundred percent of the population died when exposed to one hundred milligrams of pollutant A per kilogram of water.
Between 0 and 20 mg/kg
Between 20 and 40 mg/kg
Between 40 and 60 mg/kg
Between 60 and 80 mg/kg
Answer:
The answer is C, Between 40 and 60 mg/kg
Explanation:
I just took the test and it was right :)
Pls help pictures provided
Answer:
D. Matter is constantly cycling thought the environment
Explanation:
if im wrong im soo sorry
i hope it helps
Discuss the effects of deforestation on the following:
(a) Environment
(b) Earth
(c) The next generation
Answer:
The environment
Explanation:
Because deforestation cause erosion , flooding and desertification which affects the environment
hurryyy , ill mark brainlist!
Known as the 'Pine Tree State; Maine's state tree is the Eastern white pine. Consider the model. Cärbon dioxide, water, and sunlight
are reactants of photosynthesis and are used to produce glucose and release water as a byproduct. What advantage does the pine tree
have in performing photosynthesis compared to deciduous trees such as oak or maple?
34)
A) Pine trees need less water to do photosynthesis.
B) Pine trees produce twice as much glucose as deciduous trees.
C) Pine trees do not lose their leaves and can photosynthesize all year.
D) Pine trees get more sunlight than oak trees due to their darker color.
Answer:
C) Pine trees do not lose their leaves and can photosynthesize all year.
Explanation:
In cold-temperate and Arctic regions, however, evergreens are typically cone-bearing shrubs or trees (conifers), such as pines and firs. Many tropical species of broad-leaved blooming plants are evergreen. Thus, option C is correct.
What are features of pine trees?Pine trees may photosynthesize in the winter because they retain their needles all year long! Compared to trees that lose their leaves, this is a significant advantage.
Their leaves therefore stay green and stay attached for a longer period of time than their deciduous counterparts because they can preserve more water.
However, because of their tiny surface area, needles are not as effective at absorbing the sun's energy.
Therefore, Pine trees do not lose their leaves and can photosynthesize all year.
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_____ splits water into 1/2 O2, H , and e- . A structure of a thylakoid. Letters from A to E indicate definite structures. Letter A indicates the first protein complex located in the thylakoid membrane. Letter B indicates a multiprotein complex between two complexes A and C. Letter C marks the second integral membrane protein complex. Letter D marks a substance inside the thylakoid. Letter E indicates a flask-shaped structure in the membrane of the thylakoid, which has a canal through the membrane. D B C A E
The luminous reactions begin when light reaches photosystem II. The water molecules provide electrons to the photosystem, releasing oxygen and protons. The letter A represents photosystem II that splits water.
-----------
1. Luminous energy is trapped by chlorophyll in Photosystem II.
2. When the pigment molecules absorb light, electrons provided by water molecules get in a higher energy level.
3. The excited electrons go through the electron transport chain from Photosystem II to a less energetic level in photosystem I.
4. When the excited electrons leave photosystem II, they are replaced by new electrons extracted from the water molecules.
5. Luminous energy absorbed move the electrons from the photosystem I to another electron acceptor, from where they get transported again and used to produce NADPH molecules.
6. When electrons leave Photosystem I, they are replaced by new electrons coming from photosystem II.
7. When the water molecule breaks down, hydrogen ions remain in the thylakoid lumen, from where they are pumped to the stroma by the ATP synthase.
8. The released energy is used to produce ATP molecules.
9. Hydrogen ions go back from the stroma to the thylakoid compartment.
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what part of the skin contains blood vessels that help regulate body temperature
Answer: Dermis
Explanation: The blood vessels of the dermis provide nutrients to the skin and help regulate body temperature.
to stimulate muscle contraction acetylcholine is released from the
Answer:
motor neuron
Explanation:
in terms of structure, how do channel proteins differ from carrier proteins?
Answer:
Moreover, carrier proteins can carry out both active and passive transportation of solutes, whereas channel proteins bring about passive transport only. Both carrier proteins and channels proteins also differ in their chemical composition - whilst the former are glycoproteins, the latter are lipoproteins.
Explanation:
hope this helped you if it did please mark brainiest
Carrier proteins can carry out both active and passive transportation of solutes, whereas channel proteins bring about passive transport only.
What are the functions of carrier proteins?Carrier protein is a type of cell membrane protein involved in facilitated diffusion and active transport of substances out of or into the cell. Carrier proteins are responsible for the diffusion of sugars, amino acids, and nucleosides.
Moreover, carrier proteins bind specific solutes and transfer them across the lipid bilayer by undergoing conformational changes that expose the solute-binding site sequentially on one side of the membrane and then on the other.
Membrane carrier proteins are important transmembrane polypeptide molecules which facilitate the movement of charged and polar molecules and ions across the lipid bilayer structure of the cell membranes.
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HURRY PLEASE!!
Which is not a part of the cell theory? *
Cells divide into cells
Cells are not living things
All organisms are made up of one or more cells
Cells are the basic unit of structure and organization of living organisms
Answer:
Cella are not living things
Explanation:
Cells are living things.
Answer:
Cells are not living things
Explanation:
The other three are true, however cells are living things so it is false.
Hopefully this helps!
Brainliest please?
Summarize the role
of organisms, including micro-
organisms, in maintaining the
equilibrium of a marine ecosys-
tem while a dead whale decays
on the ocean floor.
Answer:
The disturbance that causes the succession begins with a large whale dying and sinking to the bottom of the ocean floor. The whale carcass attracts scavengers and decomposers who eat the decaying meat.
Then, within a year, most of the whale's tissues have been eaten. The remainder of the carcass is then eaten by a much smaller number of fish. The decomposition of the whale's body will enrich the surrounding sediments with nutrients.
When only the skeleton is left, a third community moves in. Heterotrophic bacteria will begin to decompose the oils found inside whale bones. During this process, they will release chemical compounds that serve as energy sources for other bacteria. This chemosynthetic bacteria will also support a wide variety of nearby organisms living on the bones.
The decay of a dead whale on the ocean floor provides food and energy for a variety of organisms, which helps to maintain the equilibrium of the marine ecosystem.
When a whale dies, it sinks to the ocean floor and begins to decay. The decay process releases nutrients into the water, which attracts a variety of organisms, including bacteria, fungi, and worms. These organisms feed on the whale's carcass, breaking it down into smaller and smaller pieces.
As the whale decomposes, it releases carbon dioxide and other nutrients into the water. These nutrients are then used by other organisms in the ecosystem, such as algae and phytoplankton. The algae and phytoplankton use the nutrients to photosynthesize, which produces oxygen. The oxygen is then released into the water, which helps to support other life in the ecosystem.
The decay of a dead whale also provides a habitat for a variety of organisms. The whale's carcass creates a sheltered environment for small organisms, such as crabs and shrimp. These organisms provide food for larger organisms, such as fish and seabirds.
The decay of a dead whale is an important part of the marine ecosystem. It provides food and energy for a variety of organisms, which helps to maintain the equilibrium of the ecosystem. The decay process also releases nutrients into the water, which are then used by other organisms in the ecosystem.
Here are some additional details about the role of organisms in the decay of a dead whale:
Bacteria: Bacteria are the first organisms to colonize a dead whale. They break down the whale's carcass into smaller and smaller pieces.Fungi: Fungi also play a role in the decay of a dead whale. They break down the whale's carcass into even smaller pieces, releasing nutrients into the water.Worms: Worms are another important group of organisms that help to decompose a dead whale. They burrow into the whale's carcass, breaking it down into even smaller pieces.Algae: Algae and phytoplankton use the nutrients released by the decay of a dead whale to photosynthesize. This produces oxygen, which helps to support other life in the ecosystem.Fish: Fish are attracted to the carcass of a dead whale. They feed on the whale's flesh and bones, as well as on the smaller organisms that live on the carcass.Seabirds: Seabirds also feed on the carcass of a dead whale. They eat the whale's flesh and bones, as well as the smaller organisms that live on the carcass.The decay of a dead whale is a complex process that involves a variety of organisms. These organisms play an important role in maintaining the equilibrium of the marine ecosystem.
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Help plssssssssssssssssssssss
B. What structures are missing from the root hair cells?
Answer:
The function of root hairs is to collect water and mineral nutrients that are present in the soil and take this solution up through the roots to the rest of the plant. As root hair cells do not carry out photosynthesis, they do not contain chloroplasts.
Explanation:
Mitochondria are missing from root hair cells.
Root hair cells are specialized plant cells found in the roots of plants. Their primary function is to absorb water and minerals from the soil. To achieve efficient absorption, root hair cells have evolved specific structural adaptations.
Root hair cells are elongated and have a large surface area due to their elongated projections called root hairs. This increased surface area enhances their ability to come into contact with the soil, maximizing water and nutrient absorption. However, due to their focus on absorption and their short lifespan, root hair cells exhibit some structural simplifications, such as the absence of certain organelles.
One notable organelle missing from root hair cells is the mitochondria. Mitochondria are the "powerhouses" of cells, responsible for generating energy in the form of ATP through cellular respiration. Since root hair cells are mainly involved in absorption rather than energy production, they have a reduced need for extensive energy generation. As a result, they don't require as many mitochondria as other cells that are highly metabolically active.
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the surgical removal of all or part of the pancreas is called
Answer:
The surgical removal of all or part of the pancreas is called total pancreatectomy.
Answer:
pancreatomy
dont know the right spelling tho
HELP ASAP!!!!
The diagram below shows a cell placed in a solution.
A cell is shown placed inside a beaker. It is labeled Cell. The solution inside the beaker is labeled 2 percent salt solution and the solution inside the cell is labeled 4 percent salt solution.
What will most likely happen to the cell?
It will expand as water moves out of it.
It will shrink as water moves out of it.
It will expand as water moves into it.
It will shrink as water moves into it.
Answer:
It will expand as water moves into it.
Explanation:
Answer:
D.It shrink as water moves into it
Explanation:
I HOPE THIS HELPS!!!!
What is a specific way that we could test the idea that the bacteria close to and farther away from the rings are different from each other?
will give brainliest
A way you could test if bacteria are different is through Gram Staining
Despite all bacteria are prokaryotic organisms, there are thousands of bacteria species and each species has different characteristics.
Moreover, bacteria are classified into two main groups:
Gram-negative bacteriaGram-positive bacteriaThese differ in their structure as gram-positive bacteria have a thick peptidoglycan layer, while gram-negative bacteria have a thin peptidoglycan layer and an external layer.
This key difference is essential when classifying bacteria because there are specific species for each type. Moreover, this can be tested through Gram staining, as this will show gram-positive bacteria as purple and gram-negative ones as pink or red.
Note: This question is incomplete because the context is not provided; however, this is the answer based on general knowledge
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The Centers for Disease Control (CDC) collect vast amounts of data. For this activity, we want you to use their Natality Information database to test various hypotheses about birth. For the following five issues, please create a hypothesis and then use the database to collect information about the issue. Once you the data is displayed, record it and indicate whether your hypothesis was supported by data.
The database functions in this manner:
Upon going to this website, you will need to comply with the CDC requirements for using the database. Because this is a school activity, you will be fine. Click I Agree.
The top section (Section 1) of the query engine will allow you to determine how your data sets will be displayed. You will want to Group Results by State for the queries you will perform.
Be sure to select the correct measure for your question/hypothesis. Select only one measure for each query.
Section 2 allows to select individual states or multiple states for comparison. If you have selected states in Section 1, you can run multiple data sets here and see them displayed by state. If you did not, the only way to see individual state data is to run the query one state at a time.
The remaining sections include the conditions you can use for comparison. You will need to find the appropriate section for the condition you are testing for. Once you have found it, go ahead and run your query by clicking Send.
Let me talk you through the process. Seriously, watch this video explanation of what you're doing.
Here's an example. Which state, Utah or New York, has the highest average age for mothers giving birth?
Hypothesis: New York has the highest average age for mothers giving birth.
Data (based on the following settings)
Section 1: Group Results by State; Measure: Average Age of Mother (years)
Section 2: Select Utah and New York
Run the report (click Send) and the data says that New York's average age of mothers is 30.26 and Utah's is 28.59
Supported hypothesis: Yes
Data Questions
Now run the data queries for the following questions and record your hypothesis, data, and whether your hypothesis was supported.
Which state, Wyoming or Texas, has the highest fertility rate?
In which state, Hawaii or Illinois, is the mother's education the highest?
Pick two states and determine which state has the most births in May. (For this question and the next two, don't forget to make a hypothesis about which one you think it is.)
Pick two states and determine which state has the most twins.
Pick three states and determine which state has the most babies with Down syndrome.
awnser must be long
Answer:
You got this!
Explanation:
Texas has the highest fertility rate by far.
"Blending" genes is associated with:
O Complete Dominance
O Blood Typing
O Incomplete Dominance
O Codominance
Answer:
a
Explanation:
The "blending" of genes is associated with incomplete dominance.
Incomplete dominance occurs when neither of the two alleles in a gene pair is completely dominant over the other.
Instead, the phenotype of the heterozygous individual is an intermediate blend or mixture of the phenotypes associated with each allele. In other words, the traits from both alleles are expressed in a blended or intermediate manner.
For example, in a cross between a red-flowered plant (RR) and a white-flowered plant (WW), if incomplete dominance is present, the resulting offspring (RW) may have pink-colored flowers, which represent a blend of the red and white traits.
Thus, the answer is incomplete dominance.
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Which is an example of active transport?
capturing sunlight to split water molecules in photosynthesis
capturing sunlight to split water molecules in photosynthesis
unwinding a strand of DNA prior to replication
unwinding a strand of DNA prior to replication
absorbing water through the cell membrane of a cell
absorbing water through the cell membrane of a cell
using energy to move waste materials out of a cell
Active transport is a type of transport that requires energy to move substances across a membrane. It occurs against a concentration gradient.
The use of energy to move waste materials out of a cell is an EXAMPLE of transport active.Active transport occurs against a concentration gradient, whereas passive transport (i.e., diffusion) occurs in favor of a concentration gradient.Active transport can be mediated by membrane proteins that move substances from an area of high concentration to an area of low concentration.This movement (active transport ) usually requires the energy provided by the hydrolysis of ATP.Water molecules move across cellular membranes through membrane protein channels called aquaporins that act in favor of a concentration gradient (passive transport).
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when the net filtration pressure is negative, what process is occurring?
Sickle-cell anemia is a genetic blood disorder. Red blood cells normally have a round shape and pass easily through small blood vessels as they deliver oxygen to the tissue. But in people with sickle-cell anemia, some red blood cells are shaped like a sickle, or a "C." The red blood cells with this sickle shape do not live as long as healthy, round blood cells.
The sickling of red blood cells is thought to be due to problems with the hemoglobin gene. The unusual behavior of the hemoglobin causes rigid fibers of protein to form in the cell membrane, leading to a decrease in its flexibility and the change in cell shape. These rigid, deformed cells are more likely to rupture or get stuck in small blood vessels, creating a blockage. When blood flow to tissues is interrupted, this can lead to long-term damage to organs and even cause death.
1. a) Based on the information above, what are at least two changes that take place in the red blood cells of individuals with sickle-cell anemia? (2 points)
it delivered oxygen easily
in sickle it cause problem
Explanation:
it because their blood cell is not spherical
the chromosomes arrive at the poles and nuclear envelopes form during which phase of mitosis?
Answer:
hope this helps ♡
Explanation:
Telophase is the fifth step in mitosis. In telophase, chromosomes arrive at opposite poles and begin to decondenese. nuclear envelope material surrounds each set of chromosomes.
the ________ response cycle includes four phases including excitement, plateau, orgasm, and resolution.
Starts with an S ends with an L.
Rhymes with usual (Big Brain thinking)
What is the formal mechanism that forces human conduct to adhere to standardized rules and norms? A. custom B. tradition C. law D. mores E. socialization
The human instincts are a product of natural biological phenomenons which define and construct human behaviors. The standardized rules and norms of the society are formed by the society and is generally very open for interpretation.
People learn from looking at other people and adapt to the most common social behaviors. That is how they adhere to the standardized norms and rules of the society.
SOCIALIZATION
I hope the answer is helpful.
Thanks.
Effects of temperature on brooding of chicks
Answer:
In research studies where groups of chicks were brooded at either 80 degrees F or 90 degrees F, the chicks reared under the warmer temperature had better weight gains, feed conversion and livability. Chicks brooded under 80 degrees F experienced reduced growth compared to the high brooding temperature treatment.
Explanation:
identify the four main components of all eukaryotic membranes.
Answer:
nucleus, golgi complex, cell membrane, and mitochondria
Explanation:
Answer:
nucleus, golgi complex, cell membrane, and mitochondria
Explanation:
just better
What is the mass of 500 ml of water?
why is sustainable use of natural resources important? to ensure that natural resources are available for future generations to help make daily life simpler by providing what every person needs to encourage scientists to make new and elaborate discoveries to prevent the exchange of resources from one region to another
Answer:
The correct answer is (a) to ensure that natural resources are available for future generations.
Sustainable development means optimized use of natural resources to meet the demand of people in the present and future scenario. The main aim of sustainable development is to balance our economic, environmental and social needs which allows the prosperity for now and future generations. Sustainability can only be maintained when the resources are used in a way that it meets the need of people, not the greed of people.This is done to ensure that natural resources are available for future generations.
Explanation:
Hope this helps...
The sustainable use is important as it ensure that the natural resources are available for future generations. So, the correct option is A.
What is Sustainable development?Sustainable development is defined as an organizational principle which aims to meet the human development goals while also enabling natural systems to provide essential natural resources and ecosystem services to humans.
The main objective of sustainable development is to balance our economic, environmental and social needs in a way which allows prosperity for present and future generations. The sustainable use is important as it ensure that the natural resources are available for future generations.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Why is sustainable use important?
to ensure that natural resources are available for future generationsto help make daily life simpler by providing what every person needsto encourage scientists to make new and elaborate discoveriesto prevent the exchange of resources from one region to anotherWhich statement best explains why carbon is present in so many kinds of molecules?
A. It can form four covalent bonds.
B. It is abundant on earth.
C. It has valence electrons.
D. It can become an ion.
Answer:
A is the ans
Explanation:
hope it helps :p
Answer:
A. It can form four covalent bonds.
Explanation:
red-green colorblindeness occurs more commonly in men than it does in women. using this information, which chromosome do you suppose the gene for red-green colorblindness resides on, and is the trait dominant or recessive?
Answer:
Usually the Y chromosome. It is recessive because if one Y chromosone is mutated with red-green colorblindness and the X is not, the child will have colorblindness. But, if one X chromosome has the mutation and the other X does not, they will cancel out, meaning the child will not have colorblindness.