Final answer:
Estrus is the fertile stage of the female reproductive cycle characterized by receptivity to mating and ovulation.
Explanation:
The fertile stage of the female reproductive cycle is Estrus. This stage is characterized by being receptive to mating and ovulation. During estrus, the female is most fertile and shows behaviors to attract potential mates.
Learn more about female reproductive cycle here:
https://brainly.com/question/43518590
