Across
- 4. organisms that can make their food themselves from simple substance.
- 5. the mode of nutrition where two different organisms work tog ether for their mutual benefit.
Down
- 1. the cells of green leaves of plants contain numerous green structures.
- 2. organisms that live in/on other organisms take their food from them
- 3. the process of taking in food by an organism and it's utilization by the body.