Brine shrimp
Female and male brine shrimp have different reproductive systems, although they are similar in some ways. The female reproductive organs consist of ovaries and an ovisac. These are used to produce and store their eggs. The male reproductive organs are testes and a penis. Females can fertilize their eggs in two ways. The first way involves both the male and female brine shrimp. The male would help fertilize the egg in the female's body. This process is known as copulation. The other way only involves a female brine shrimp. She is able to fertilize her own egg.