Why are reptiles better adapted to land dwelling than amphibians are?
A) Their lungs have a smaller surface area for gas exchange.
B) Their embryos develop in a uterus.
C) Their two-chambered heart better mixes oxygenated and deoxygenated blood.
D) Their moist skin is used as a respiratory structure.
E) Their scaly skin prevents water loss.
Correct Answer:
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A) amphibian.
B) bird.
C) mammal.
D)
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A) amphibian.
B) cartilaginous fish.
C)
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