2. All reptiles reproduce sexually by
(A) external fertilization in which eggs are fertilized in water.
(B) external fertilization in which eggs are fertilized in a moist terrestrial environment.
(C) internal fertilization only.
(D) both internal and external fertilization.
(E) external fertilization in which the male deposits a spermatophore outside the body.
阿摩線上測驗
登入