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inn [45]
3 years ago
15

When scientists compare molecular clocks between species, they

Biology
2 answers:
Monica [59]3 years ago
6 0

Answer:

ITS B: DIIFERENT GENES

Explanation:

Dafna11 [192]3 years ago
6 0

Answer:

Yeah same here

Explanation:

The reason is mutation rates differ between species and even between different regions of the genome of a single species. These different rates of nucleotide substitution are measured in substitutions (fixed mutations) per base pair per generation.

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Explain why the resistance of the current path through the extracellular fluid is much smaller than the resistance of the curren
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Answer:

The correct answer is - the large cross-sectional area and greater length of the cytoplasmic core get less resistance than the smaller cross-sectional area.

Explanation:

The greater length and the large cross-sectional area of the cytoplasmic path or core get less resistance than the resistance of the current path which is the small cross-sectional area of axoplasm. This leads it to greater resistance than the resistance of the current path through the extracellular fluid.

Other than this there is also an unequal distribution of the ions that leads to the increase in potential difference as higher Na+ ions present in cytoplasm and high amount of K+ ion present in axoplasm.

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3 years ago
What happens to biodiversity<br> and ecosystems when the<br> environment changes?
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3 years ago
I neeeeed helppp plz
EleoNora [17]

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amino acids

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Analyze the graph with a partner. How many mass extinctions did you identify? How did you determine when they occurred?
Scilla [17]

Answer:

4 mass extinctions

Explanation:

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