Across
- 4. tiny pores underside of leaves
- 5. the process of taking in food by an organism and its utilization by the body
- 7. bacteria can convert atmospheric nitrogen into water soluble compounds
- 8. organism that live on that plants and animals and derive their food from them
- 9. the mode of nutrition by two different organisms work together for the mutual benefit
Down
- 1. substance required for growth of plants
- 2. organisms​ that directly or indirectly depend on green plants for nutrition
- 3. organisms that live in or on other living organism and derive their food from them
- 6. organisms that can make their food from simple non living substances