Title: How Life is Organized

Instructions: Fill in the blanks with the correct terms to complete the worksheet.

1. The smallest unit of life is called a ____.

2. A group of cells that work together to perform a specific function is called a ____.

3. Different tissues working together form an ____.

4. Different organs working together form an ____.

5. Different organ systems working together form an ____.

6. The highest level of organization in life is the ____.

7. All living things are made up of ____.

8. The process by which living things produce more of their own kind is called ____.

9. The process by which living things grow and develop is called ____.

10. The process by which living things respond to changes in their environment is called ____.

11. The process by which living things obtain and use energy is called ____.

12. The process by which living things break down food to release energy is called ____.

13. The process by which living things eliminate waste is called ____.

14. The process by which living things maintain a stable internal environment is called ____.

15. The study of life and living things is called ____.

Answers:

1. cell
2. tissue
3. organ
4. organ system
5. organism
6. ecosystem
7. cells
8. reproduction
9. development
10. response
11. metabolism
12. digestion
13. excretion
14. homeostasis
15. biology