Students are studying why two species of tree frogs live in different environments. Both species of tree frogs exist in the southeastern United States. Their ranges overlap in parts of the South, but the gray tree frogs also live farther north. Gray tree frogs prefer darker, wooded
areas with less available water, while green tree frogs prefer wetlands with reeds, cattails, and aquatic grasses.
What are the two most likely ways natural selection led to the frogs' geographic locations?
UA
The green tree frogs traveled more slowly than the gray tree frogs.
B. Once the populations separated, interbreeding was no longer possible.
C.
The frogs moved to environments with the most preferred food sources.
UD. Cooler temperatures in the North reduced egg survival of the gray tree frog.
E. When their color matched the environment, the frogs found protection from predators.