Animals with Reproduction Dependent on Internal Fertilization Need Not Have

Question

Animals with reproduction dependent on internal fertilization need not have
A) any copulatory organs.
B) a receptacle that receives sperm.
C) behavioral interaction between males and females.
D) internal development of embryos.
E) haploid gametes.

Accepted Answer

Animals with reproduction dependent on internal fertilization need to have internal development of embryos. This is because internal fertilization involves the fusion of sperm and egg inside the female's body, and therefore the resulting embryo needs a protected and nourishing environment in which to develop.