there's really only 3: carbohydrates, protien, and fat.
Everything else is a sub-division.
A group of organs
assimilation is the absorption of nutrients from the food we eat by our body
Mostly water.
The body uses fat which is a stored form of energy.
The answer to that is the purpose of the body system is to help you live and start your brain. The body system also allows you to eat and digest food.
proteins
Protein
the main vegetable food group would be carrots because they have a low calories with less then 0.012g of fat and that is the nutrient what would help the human body.
In the human body there is no "opening" that stores food.
The human eye.
human body obtains reactants from food
A group of organs
Intestine is a highly coiled tubular organ of the human body which is involved in the food digestion process of the human body. It contains various enzymes and acids that breaks down complex food material into body usable food material that can be used by the human body. Thank you.
assimilation is the absorption of nutrients from the food we eat by our body
Food
they well be fat:P
For energy