Across
- 2. organisms such as bacteria and fungi that break down dead material.
- 6. the intensity of light from a celestial body.
- 7. region in space having infinite gravity.
- 8. an organism that consumes both animals and plants.
- 10. all of space and the matter space contains.
- 11. an animal that eats other animals.
- 12. a large grouping of stars in space.
Down
- 1. an organism that consumes only plants.
- 3. an organism that must consume other organisms for nutrients.
- 4. an organism that produces its own energy.
- 5. the death of a large star by explosion.
- 9. large cloud of gas and dust in interstellar space.