Knowledge adquisition

2. Fruits contain simple sugar and _________.
4. Some materials travel through the large intestine and are eliminated from the body as feces by _______.
7. It is the most important nutrient.
11. A_________ provides nutrients in adequate amounts and enough energy for a person to maintain a healthful weight.
14. A group of organs that perform closely related functions.
16. System which is composed from brain, spinal cord and nerves.

1. A group of different types of tissues that work together to perform a single or several related functions.
3. System which is composed from skin, hair, nails, sweat and oil glands.
5. A group of cells that perform a single function.
6. The_______the body needs include water, carbohydrates, fats, proteins, vitamins and minerals.
8. Most nutrients from food are absorbed through the walls of the________intestine.
9. System that breaks down food; absorbs nutrients;eliminates wastes.
10. third phase in the digestive system in which food is absorbed by cells in the small intestine.
12. Basic unit of structure and function in living things.
13. In this phase they are involved Mechanical and chemical digestion.
15. Molecules in food contain chemical energy that cells use to produce ________.