Across
- 3. an organism that gets energy from eating plants or animals
- 5. an organism that uses sunlight to makes its own food for energy
- 6. a mixture of sand, silt, clay, rock, and humus (plant and animal remains)
- 7. an organism that breaks down the remains of the dead plants or animals without need for internal digestion
- 8. any unused and rejected materials that are seen as worthless or unwanted
Down
- 1. actions by one that have an effect on a different or separate thing
- 2. the space, conditions, and all the living and nonliving things around an organism
- 4. a very small life-form, especially a bacterium