Across
- 4. process that allows food to be broken down in our body
- 8. process in which oxygen is released
Down
- 1. plants that derive food from dead decaying and organic matter
- 2. structure in green pigment
- 3. simplest form of sugar
- 5. small openings or pores usually on the under side of leaves
- 6. organisms that prepare their own food
- 7. converts nitrogen in air into usable nitrogen soil