The Invasion of the Land by Amphibians Posed a Number

question 42

Multiple Choice

The invasion of the land by amphibians posed a number of challenges requiring evolutionary innovations.Which one of the following does NOT match a challenge with a corresponding adaptation found in amphibians?

• A)The force of gravity was greater without water's buoying effect,selecting for well-muscled legs.
• B)Additional oxygen was needed for larger muscles,selecting for the partially-divided heart and pulmonary circuit.
• C)Eggs dry out in a terrestrial environment,selecting for the amniotic egg.
• D)Gills tend to collapse out of the water,selecting for lungs and cutaneous respiration.

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