Knowledge adquisition

2. In this phase they are involved Mechanical and chemical digestion.
5. A_________ provides nutrients in adequate amounts and enough energy for a person to maintain a healthful weight.
8. It is the most important nutrient.
10. Fruits contain simple sugar and _________.
11. System that helps protect the body from disease.
12. Molecules in food contain chemical energy that cells use to produce ________.
13. A group of organs that perform closely related functions.
15. Most nutrients from food are absorbed through the walls of the________intestine.

1. A group of cells that perform a single function.
2. System that breaks down food; absorbs nutrients;eliminates wastes.
3. A group of different types of tissues that work together to perform a single or several related functions.
4. Basic unit of structure and function in living things.
6. The_______the body needs include water, carbohydrates, fats, proteins, vitamins and minerals.
7. Some materials travel through the large intestine and are eliminated from the body as feces by _______.
9. third phase in the digestive system in which food is absorbed by cells in the small intestine.
14. System which is composed from brain, spinal cord and nerves.