Across
- 6. relationship between animals where they both benefits
- 7. Animal that attacks prey or other animal
- 10. Fossil fuels are considered this type of energy
- 12. Taking more organism for food than one needs to.
- 14. Living things that make their own food e.g. plant
- 15. rain, sleet, hair - are all forms of this
- 16. Organisms that can interbreed and produce fertile offspring are members of this
- 17. when all members of a species die
- 18. Several food chains joined together
- 19. the ultimate energy source
Down
- 1. garbage in a place where it is not supposed to be.
- 2. the sphere for living things
- 3. Plants store energy as this compound
- 4. an educated guess
- 5. The variety of living things
- 8. Step in the water cycle where liquid water becomes water vapor
- 9. Process by which plants make food using the sun’s energy
- 10. Step in the nitrogen cycle where NO2 becomes NO3-
- 11. A trait that helps an organism better survive
- 13. Animal that eat plants