Calorie
(Calorie most specifically means the amount of energy needed to raise one gram of water by one degree celsius.)
*But in the context of nutrition, we use calorie to describe how much energy a food contains and can transfer to the body. For example, a banana has about 105 calories. The average human adult needs about 1800-2000 calories per day depending on size and activity level.
Protective covering and camouflage
Answer: norepinephrine
Neurotransmitters are chemical messengers in the brain that are the means by which brain cells communicate with each other. New drugs like venlafaxine are called <em>serotonin-norepinephrine reuptake inhibitors</em>, and their function is to target two main neurotransmitters: serotonin and norepinephrine, which are the main neurotransmitters associated with depression.
The answer is B cause it is
