9. The "neuron" is the largest organ of the central nervous system.*
True
False

False : Its the brain

Explanation:

Since the brain makes up the largest portion of CNS because it's often the main structure referred when speaking of the nervous system in general.

a lack of sleep can affect body weight. two hormones in the body, leptin and ghrelin, control feelings of hunger and satiety, or fullness.

explanation:

the answer to your question is: family members who abuse drugs.

(i hope this ! )