Which term describes a recurring period of sexual receptivity and fertility in many female mammals?

Which term describes a recurring period of sexual receptivity and fertility in many female mammals?

• A. Estrus
• B. Gestation
• C. Parturition
• D. Lactation

Answer: (A)

Estrus is the recurring period during which many female mammals are sexually receptive and fertile. This phase is driven by hormonal changes, mainly rising estrogen, which prepares the reproductive tract and triggers mating behavior. It’s often called “heat” because animals show outward signs of receptivity during this time, indicating ovulation or its proximity. This is the term that describes the described reproductive window. Gestation refers to pregnancy, parturition to birth, and lactation to milk production after birth.

Estrus is the recurring period during which many female mammals are sexually receptive and fertile. This phase is driven by hormonal changes, mainly rising estrogen, which prepares the reproductive tract and triggers mating behavior. It’s often called “heat” because animals show outward signs of receptivity during this time, indicating ovulation or its proximity. This is the term that describes the described reproductive window. Gestation refers to pregnancy, parturition to birth, and lactation to milk production after birth.