1. What is food?write the different functions of food

Food is a source of energy that the body needs so that the body can function correctly and efficiently.

Depending on what types of food, food can give your body certain healthy nutrients such as certain vitamins, antioxidants, protein, calcium, fiber, etc. It can keep your body healthy, alive, allows you to move and work. It also helps in the process of building new cells and tissues for the body's growth process. It can help your body heal from wounds, cuts, bruises, etc. It can also help prevent and fight infections due to the nutrients in the foods.

Explanation:

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

c. is the correct answer