Across
- 4. organism which lives in or on another organism and benefits by deriving their food from them.
- 6. between two different organisms living in close physical association.
Down
- 1. organism deriving its nutritional requirements from green plants for nutrition.
- 2. organism that feeds on or derives food from decaying organisms.
- 3. process of providing or obtaining the food necessary for health and growth.
- 5. organism that can make their own food from simple non-living substances.