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Effectus [21]
3 years ago
14

what can be inferred about the evolution of the cranium and vertebral column from examining hagfishes and lampreys?

Biology
1 answer:
dalvyx [7]3 years ago
4 0

Answer:

What can be inferred about the evolution of the cranium and the vertebral column from examining hagfishes and lampreys? Comparison of hagfishes with lampreys shows that the cranium evolved first in early vertebrates, as it is seen in hagfishes, which evolved earlier than lampreys.

Explanation:

I hope this helps!

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NegativePositive

Positive

The design of the amphibian circulatory system is curious because blood accumulates oxygen in the lungs and is then returned to the heart before being pumped into the rest of the circulatory system. Therefore, a mixing between oxygenated and deoxygenated blood occurs as blood returning to the heart from the lungs is mixed with incoming blood from the body. Frogs handle this situation by having a very slow metabolism and by absorbing some oxygen through their skin. In addition, the ventricle does have some directional control over the distribution of the blood.

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Explanation:

4 0
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