4. Choose the correct definition for the term. a. body mass index - one way of measuring ones body type as underweight, normal, overweight or obese
b. patterns of switching in the on and off controls on genes
c. secreted when no food has arrived for a while and stimulates the hypothalamus to make you feel hungry
d. an appetite regulating hormone that reduces hunger
e. spot in your brain that registers many chemical signals

1.epigenetic effects
2.Leptin
3.BMI
4.Gherlin
5.hypothalamus

I did my research :) so im sure it’s correct

Explanation:

1.B

-While genetic changes can alter which protein is made, epigenetic changes affect gene expression to turn genes “on” and “off.” Since your environment and behaviors, such as diet and exercise, can result in epigenetic changes, it is easy to see the connection between your genes and your behaviors and environment.

2. D

-Leptin is produced by your fat cells. It's considered a “satiety hormone” that reduces appetite and makes you feel full. As a signaling hormone, its role is to communicate with the hypothalamus, the portion of your brain that regulates appetite and food intake.

3. A

bmi literally means body mass index :)

4. C

- Ghrelin is made in the stomach. It stimulates hunger by entering the brain and acting on the neurons in the hypothalamus to increase the activity of the hunger-causing nerve cells and reducing the activity of hunger-inhibiting cells.

5.E

- The hypothalamus is a small region of the brain. It's located at the base of the brain, near the pituitary gland. While it's very small, the hypothalamus plays a crucial role in many important functions, including: releasing hormones

if its wrong I’m sorry, I hope this helps! :)