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Author Question: Why is the amniotic egg considered an important evolutionary breakthrough? A) It (Read 673 times)

federox

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on: Aug 8, 2013
Why is the amniotic egg considered an important evolutionary breakthrough?
A) It has a shell that increases gas exchange.
B) It allows deposition of eggs in a terrestrial environment.
C) It prolongs embryonic development.
D) It provides insulation to conserve heat.
E) It permits internal fertilization to be replaced by external fertilization.


theo

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Reply #1 on: Aug 10, 2013
Answer has to be B, 100% :D


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