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Semenov [28]
3 years ago
14

On an evolutionary tree, what is the intersection and common ancestor known as?

Biology
1 answer:
erica [24]3 years ago
5 0
Grandpa.............................
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It is important to assign a single universally accepted name to each because scientists once communicated about organisms by using common names. 
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What causes there to be a H+ ion concentration gradient to build up inside the thylakoid space? Check all that apply. a. The ele
siniylev [52]

Answer:

a. The electrons provide energy for the H+ pump to transport more H+ ions into the thylakoid space.

d. The photolysis of water releases H+ ions into the thylakoid space.

Explanation:

This question describes the first stage of photosynthesis, which is LIGHT-DEPENDENT REACTION. The light dependent reactions involve creating ATP (energy carrier) and NADPH (electron carrier) needed for the Calvin cycle (light independent stage) to occur.

The ATP is formed by pumping hydrogen ions (H+) into the thylakoid space/lumen, hence, creating a electrochemical gradient needed for ATP synthase to synthesize ATP. The buildup of H+ ions is caused by:

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- The photolysis of water results in the production of electrons (e-) and hydrogen ions (H+). These hydrogen ions are released into the thylakoid space.

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3 years ago
Gene knockouts often result in embryonic lethality. What strategy do investigators often use to make it possible to study a gene
Gennadij [26K]

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Explanation:Genes are picked by investigators through hand picked

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or based on chromosomal position.

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4 years ago
Do venus fly traps have to be in direct sun light or shade
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I hope this helps!
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Natural selection is the way that animals evolve. 

The theory of natural selection is that the animals that do not have a specific trait to survive in their environment will die. The animals that do have the trait will survive. The animals that survive will then pass the trait down to their offspring, who will also likely survive because they have the trait. This is how species evolve and continue to survive in their environment. 

The species evolve because only the fittest survive (this is known as "survival of the fittest"). The animals that do not have the needed traits will die and they cannot have offspring. 

I hope this helps answer your question! Have a great day!
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