Across
- 2. getting smaller
- 3. an organism that produces its own food such as a plant
- 5. an organism that consumes only plants
- 8. the number of one type of species in an area
- 10. the relationship between organisms where both benefit
- 12. the number of different species of plants and animals in an area
- 13. role in an ecosystem
- 14. a push or a pull that can change the motion of an object
- 15. and organism that is hunted by other organisms for food
Down
- 1. occurs when a species no longer exists
- 4. an organism that hunts for its food
- 6. a large grouping of stars in space
- 7. the death of a large star by explosion
- 9. an organism that consumes other animals
- 10. anything that has volume and mass
- 11. a change in an objects position, direction, or location