Mr. Biaski is a very active 47-year-old man who should weigh 168 pounds. How many calories should he eat each day?

Approximately 2,700 calories.

Explanation:

To preserve your weight, you've got to require within the same number of calories you burn. It takes about 3,000 calories a day for the normal 165-pound man who is 19 to 24 years ancient to preserve his weight. From ages 25 through 49, it takes 2,700 calories per day to preserve the same weight.

answer: our bodies are made up of mostly water, we rely on it to regulate our body funtions.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .