Knowledge adquisition

4. Fruits contain simple sugar and _________.
6. A____diet provides nutrients in adequate amounts and enough energy for a person to maintain a healthful weight.
8. third phase in the digestive system in which food is absorbed by cells in the small intestine.
10. The_______the body needs include water, carbohydrates, fats, proteins, vitamins and minerals.
12. A group of organs that perform closely related functions.
15. Basic unit of structure and function in living things.

1. In this phase they are involved Mechanical and chemical digestion.
2. It is the most important nutrient.
3. System that helps protect the body from disease.
5. System that breaks down food; absorbs nutrients;eliminates wastes.
7. Some materials travel through the large intestine and are eliminated from the body as feces by _______.
8. Molecules in food contain chemical energy that cells use to produce ________.
9. A group of different types of tissues that work together to perform a single or several related functions.
11. Most nutrients from food are absorbed through the walls of the________intestine.
13. System which is composed from brain, spinal cord and nerves.
14. A group of cells that perform a single function.