Answer:
Antidiuretic hormone
Explanation:
Antidiuretic hormone that is synthesized and produced in the brain by the hypothalamus, is secreted from the pituitary gland, where it is stored. This hormone is released into the blood stream in response to changes in the water balance in the blood. This hormone helps the kidneys to control and regulate the amount of water in the blood
I'm pretty sure that cells contain genes inside them.
The fruit flys population would be less since the apples isn’t there anymore. The reasoning behind that is because it’s a fruit fly they like being around fruit.