1. A group of organs performing life processes such as digestion, excretion, respiration, and others is called . 2. Lungs, heart, brain, skin are examples of . *
3. An individual living thing composed of one or more organ systems. *
4. Organism with only one cell such as bacteria is known as organism. *
5. The part of the earth that contains all ecosystems is called .
6-14. List the level of biological organization from the smallest to the largest level. Write in all capital letters.
15. Every level of life affects one another and is necessary for the existence of life.
True
False