Across
- 2. bacteria in the soil that can convert atmospheric nitrogen into soluble compounds.
- 5. the structures in cells of a leaf that contain chlorophyll.
- 6. mutually beneficial relationship between two living organisms.
- 7. organisms that can make their food.
Down
- 1. cells controlling theopening and closing of stomata.
- 3. organisms that cannot make their own food.
- 4. Organisms that live in or on other living organisms and get their food from them.