Gestation period is defined as the time
- of release of ovum from the ovary
- of fusion of the sperm and the egg
- of the birth of the young animal
-
between conception and parturition
The correct answer is: D
Explanation
The gestation period is defined as the time between conception (fertilization of the egg by the sperm) and parturition (birth). It is the period during which an embryo develops into a fetus inside the mother's body.