Question

Monoestrous animal have
A: One ovulation each month
B: One egg
C: One breeding season in a year
D: One menses each month.

Answer 1

Estrous is the reproductive cycle of all the species of females. It starts after the sexual maturity in females. The main function of this estrous cycle is to produce ovum which is very important for the fertilisation. The primary hormones involved in this cycle is progesterone and estrogen. Animals like bears, foxes and wolves have a monoestrous cycle.

Complete answer:
To answer the above question let's study some important points.
The reoccurring physiological changes which are induced by reproductive hormones are called estrous cycle.
The main function of this estrous cycle is to produce the ovum/ova. This process is called ovulation.
Monoestrous animals are the animals that have only one estrus cycle per year.
Polyestrous cycles are the animals that have multiple estrus cycles during certain periods of the year.
Wolves, bears,foxes are having the monoestrous cycle.
Deer, goats, sheep are having the polyestrous cycle.

Hence, the correct option is option C. One breeding season in a year.

Additional Information :
The estrous cycle has four phases that are proestrus, estrus, metestrus and diestrus.
Estrous cycle starts after sexual maturity in females.
It occurs due the shedding of the endometrial lining of the uterus.
Monoestrous animals normally breed in one breeding season that is typically in spring to allow the growth of offspring.

Note:
The physiological changes induced by the reproductive hormones are called an estrous cycle. It is the sexual cycle in females. This cycle has four phases that are proestrus, estrus, metestrus and diestrus. The responsible hormones are estrogen and progesterone. Monoestrous cycle is the estrous cycle that happens once in a year. Polyestrous cycles are the estrous cycles that occur when multiple cycles occur during a certain period of time.