Answer: Prolactin
Explanation: During breastfeeding the anterior pituitary gland in the brain releases hormone prolactin as part of positive feedback mechanism. A mothers alveoli will collect nutrients from the blood and convert them into milk. Another hormone oxytocin, causes the muscles around the breast to eject milk (a let-down reflex) whilst a baby is sucking.
A sucking baby is actually a positive feedback that causes the brain to release more prolactin, which in turn causes the alveoli to convert more sugars and nutrients into milk.
Question options:
The question was incomplete. I managed to find these options from other sources.
a) Hypothetical
b) Qualitative
c) Quantitative
Answer:
The correct answer is quantitative (option C).
Explanation:
When a student is measuring the number of beats per second, he is dealing with numbers or counts. Measurement of values or counts is known as quantitative data. <u>Quantitative data deals with quantity, not quality.</u>
On the other hand, qualitative data deals with quality and Hypothetical data deals with hypothesis.
The patient should decrease the amount of rice and pasta and increase the amount of lean meats in his or her diet.
Animals react to how they feel certain things. If they don’t feel comfortable around them because they aren’t suited to their surroundings, they will feel alert and scared. For example: a green snake can hide in trees and blend in. But if that snake isn’t with a suited area, he will most likely get attacked, because he can’t blend in.
So natural selection plays a big part on how animals react or behave because animals may or may not be suited to their surroundings.