Question

multiple choice question
in animals, ____ fertilization occurs outside the body, and ____ fertilization occurs within the female animal body.
coelomate; acoelomate
direct; indirect
incomplete; complete
external; internal

Explanation:

External fertilization is when sperm and egg combine outside the body (e.g., in water for many aquatic animals). Internal fertilization is when sperm fertilizes the egg inside the female's body. Coelomate and acoelomate refer to body - cavity presence. Direct and indirect are about development. Incomplete and complete are often used in other biological contexts (like metamorphosis).

Answer:

external; internal