Answer: A. external fertilization doesn’t require sexual intercourse.
Explanation:
Fertilization is a process of fusion of the male and female gametes of the organisms so as to produce zygote a precursor of new life. In living beings the fertilization is of two types named as external and internal fertilization.
In external fertilization the fusion of the gametes of opposite sex takes place outside the body of the organism. It is used by some aquatic organisms like fishes they lay their eggs in water which are fused by the male sperms also released in water. In external fertilization no direct sexual intercourse takes place.
In internal fertilization the fusion of the male and female gamete takes place inside the body of the female mate. This occurs due to direct sexual intercourse between the male and female partners.
