Which term best describes the pregnancy period in animals?

Which term best describes the pregnancy period in animals?

• A. Estrous cycle
• B. Gestation
• C. Fertility
• D. Reproduction

Answer: (B)

Gestation is the period of pregnancy, the time from conception to birth, when the embryo or fetus develops inside the uterus. This term is used specifically to describe how long pregnancy lasts, and the length varies by species (for example, cows are around 9 months, dogs about 2 months, humans roughly 9 months). The other terms describe different ideas: the estrous cycle is the female’s reproductive cycle of hormonal phases and heat periods; fertility is the ability to conceive or the likelihood of becoming pregnant; and reproduction is the broad process of producing offspring, including mating, conception, development, and birth.

Gestation is the period of pregnancy, the time from conception to birth, when the embryo or fetus develops inside the uterus. This term is used specifically to describe how long pregnancy lasts, and the length varies by species (for example, cows are around 9 months, dogs about 2 months, humans roughly 9 months). The other terms describe different ideas: the estrous cycle is the female’s reproductive cycle of hormonal phases and heat periods; fertility is the ability to conceive or the likelihood of becoming pregnant; and reproduction is the broad process of producing offspring, including mating, conception, development, and birth.