Across
- 4. mode of nutrition where two living organisms work for their mutual benifit
- 6. mode of nutrition where green plants make food from simple substances
- 7. organisms that live on other living organisms and derive their food from them
- 8. organisms that live on dead plants and animals and derive food from them
Down
- 1. synthesis of food which occurs with the presence of sunlight
- 2. converts atmospheric nitrogen in water-soluble compounds
- 3. depends directly or indirectly on green plants for nutrition
- 5. leaves take in carbon dioxide through these tiny pores