Question

multiple choice question 26.58
1 part -- of 1 point

which of the following is regulated by a positive feedback mechanism in females?

implantation

fertilization

ovulation

menstruation

check answer

Explanation:

To solve this, we analyze each option:

• Implantation: Involves the embryo attaching to the uterine lining, regulated by hormonal and other factors but not positive feedback.
• Fertilization: Is the fusion of sperm and egg, a one - time event not regulated by positive feedback in the context of female physiology.
• Ovulation: During the menstrual cycle, the surge of luteinizing hormone (LH) that triggers ovulation is a positive feedback mechanism. As estrogen levels rise, they stimulate more LH release, which in turn causes more estrogen release, amplifying the process until ovulation occurs.
• Menstruation: Is the shedding of the uterine lining, regulated by negative feedback (drop in progesterone and estrogen) rather than positive feedback.

Answer:

C. ovulation (assuming the options are labeled A. implantation, B. fertilization, C. ovulation, D. menstruation; since the original options didn't have labels, we use the standard multiple - choice labeling here with the correct option being ovulation)