Answer: option C) enables the "let-down" reflex to occur when a woman breastfeeds her baby.
Explanation:
Oxytocin is a hormone secreted by the posterior pituitary gland. It stimulates the contractions of smooth muscles such as
- uterus facilitating childbirth
- ducts of the mammary glands resulting in ejection of milk. Thus, it is also called as milk-let-down-ejection factor.
So, option C is the correct answer
Answer:
Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection)