Animals are motile because they have:
a. energy
b. metabolism
c. nerve and muscle fibers
d. legs or wings

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Rotenone is an insecticide that is toxic

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f