Question

____ is the union of sperm and egg. *
○ a. conception
○ b. gestation
○ c. parturition
○ d. reproduction

Explanation:

Conception is the process where a sperm fertilizes an egg, forming a zygote. Gestation is the period of development of the embryo - fetus in the uterus. Parturition is the act of giving birth. Reproduction is the biological process by which new individual organisms are produced, and conception is a part of it.

Answer:

A. Conception