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devlian [24]
3 years ago
7

4

Biology
1 answer:
bearhunter [10]3 years ago
6 0

An increase in the number of snakes.

Please mark Brainliest

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In photosynthesis, how does the movement of electrons along the electron transport chain affect hydrogen ions (h+)? how does thi
lukranit [14]
As electrons move along the chain, hydrogen ion are pumped from the stroma of the chloroplast into thylakoid lumen. these leads to creation of proton gradient in thylakoid lumen with the potential energy that will be used to synthesize ATP by enzyme ATPase in the process referred to as rotational catalysis. both chloroplast and mitochondria use electron transport chain to pump protons across the membrane and both enzyme ATPase to produce ATP using proton gradient created in the process of transport of hydrogen ions. the main existing between the electron transport chains of chloroplast and mitochondria is the initial source of energy. chloroplasts obtain their energy from sunlight whereas mitochondria obtain theirs from organic molecules.   
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A student is studying several species that belong to the plant kingdom. Which two are most closely related
Shtirlitz [24]

Answer:it’s A)

Explanation:I saw it on a quiezlet online lol

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2 years ago
From which of the following does the right atrium receive blood?
olga2289 [7]

The right atrium receives blood returning from others parts of the body through the superior vena cava and the inferior vena cava.  

Explanation:

The pathway of circulation begins in the right atrium which receives the carbon dioxide-rich deoxygenated blood returning through the systemic circulation.  

The deoxygenated blood from regions superior to the heart, i.e., the head, neck, shoulder areas are collected through the superior vena cava and that from the parts inferior or lower to the heart like visceral organs, extremities, trunk, hip etc are brought through the inferior vena cava.

Both these venous systems (superior and inferior) fill the right atrium.

The right atrium then pumps the deoxygenated blood to the right ventricle via the tricuspid valve.

The right atrium is filled with blood during diastole.

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3 years ago
Which best describes plant classification?
timurjin [86]
Angiosperms are grouped into monocots and dicots
8 0
2 years ago
Read 2 more answers
Biochemical function within any cell is determined largely by specific enzymes. Remember, enzymes are proteins. Different sets o
Tatiana [17]

Answer:

This is how cells gene regulation occur.

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Regulation of gene expression is  very very important thing to maintain the normal levels of all body proteins according to our body"s requirement.

            During positive gene regulation enzymes of various metabolic pathways of the target cell is being activated,thus supplying the cellular need of various metabolites and proteins.

             During negative regulation various enzymes are  turned off thus blocking the formation of metabolites or proteins not required by the cell.

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3 years ago
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