How can erosion change mountains over many years?

a. it can make the mountain shorter.
b. it can move the mountain west.
c. it can make peaks taller.
d. it can cause a volcano.

What is the best-known carbohydrate?

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior