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notsponge [240]
3 years ago
15

2 points

Biology
1 answer:
rjkz [21]3 years ago
5 0

Answer:

Option B

Explanation:

The presence of these structures in this stage may be a prediction of a common ancestor as these structures are not gills because they do not develop into gills in chicks and humans but being so similar to gill structures in fish at this stage in their embryo suggests that chicks and humans share a common ancestor with fish.

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"DNA denatures at a higher temperature than does protein, yet its structure depends on relatively weak hydrogen bonds. Why the d
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The option are not given and the options are:

Proteins are denatured by breaking covalent bonds.

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Answer:

The correct answer is- Individual hydrogen bonds may be weak, but DNA structure is stabilized by many thousands or millions of these bonds - far more than found in proteins.

Explanation:

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