Question

Which is an example of the body maintaining homeostasis using a negative feedback loop?

A. During a woman’s menstruation cycle, the hormone estrogen triggers glands in the brain to release hormones that cause the ovaries to release more estrogen.
B. When a cut occurs on a person’s skin, the body causes more and more platelets to accumulate in the blood in that region, causing a clot.
C. During childbirth, a woman’s body releases hormones to promote the process and to increase contractions until the child is born.
D. When a person is losing balance, the body senses the position of the head and sends signals to keep balance.

Answer 1

D. When a person is losing balance, the body senses the position of the head and sends signals to keep balance.

Step-by-step explanation:

A negative feedback loop is a response by the body to an internal change that activates mechanisms that reverse or negate that change bringing the body back to its set point. A set point is the normal level the body tries to maintain.

So if you lose balance your body will go back to the setpoint of balance which is a response negtative feedback.

Answer 2

B. When a cut occurs on a person’s skin, the body causes more and more platelets to accumulate in the blood in that region, causing a clot.