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patriot [66]
3 years ago
14

What are dolphins made/ what support structures do they have?

Biology
1 answer:
Vedmedyk [2.9K]3 years ago
6 0
They have a arched back in order to jump and get air
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3 years ago
In which of the following ways does a virus resemble cellular organisms?
Troyanec [42]

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7 0
2 years ago
An action potential in one segment of axon causes adjacent sections of axon membrane to reach threshold through what mechanism?
Furkat [3]
<h3>Answer:</h3>

The generation of local currents.

<h3>Explanation:</h3>

An action potential at the axon hillock generates local currents that depolarize nearby sections of axon to threshold. This change in membrane potential causes voltage-gated Na+ channels to open in the adjacent axon segment. This generates/regenerates the action potential in the adjacent segment, causing the action potential to propagate away from the axon hillock.

5 0
3 years ago
Which of the following statements is correct?
Keith_Richards [23]

Answer:

The statement that is correct is that all cells have the same genes, but different genes are active in different cells.

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All cells contain the same DNA, which is organized into chromosomes and contain the genes that determine specific characteristics. <u>There is cell differentiation because some genes can be expressed and others are suppressed, all due to genetic regulation</u>.

The other choices are wrong because:

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  • <em>All cells have DNA.</em>
7 0
2 years ago
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