The Amniotes Evolved the Ability to Reproduce by Laying Eggs

question 95

Multiple Choice

The amniotes evolved the ability to reproduce by laying eggs that have shells. The major advantage of shelled eggs is that

• A) the embryo needs only a small amount of yolk for development.
• B) they do not have to be laid in a moist environment.
• C) the shells increase evaporation from the egg.
• D) nitrogenous wastes can be excreted across the shell.
• E) gas exchange with the environment is more efficient.

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