Amphibians Are Especially Vulnerable to Environmental Change Because

Amphibians are especially vulnerable to environmental change because

A) they live in isolated habitats found only in tropical regions.
B) they require moist environments for gas exchange and reproduction.
C) they have direct development and do not move from the habitat in which they hatch.
D) their loud mating calls make them vulnerable to predators.
E) they are not endothermic and thus are more vulnerable to temperature fluctuations than other vertebrates.