Across
- 2. Organism that live on dead plants and animals and derive their food from them
- 4. Organism that can make their food from simple non-living substances
- 5. The mode of nutrition where two different organisms work together for their mutual benefit
Down
- 1. Organism that directly or indirectly depend on green plants for nutrition
- 3. Organisms that live in or on dead plants and animals and derive their food from them