Across
- 3. the bottom of a energy pyramid
- 5. a group of related food chains
- 9. A group of the same species living in the same area
- 13. Something that is not alive Example: rock
- 14. what a organism is meant for
- 16. interaction where both organisms are harmed
- 17. important species in a area
- 18. fixation another name for Nitrogen cycle
- 19. changing to fit your environment
- 20. guessing pop by signs of life in a area
Down
- 1. catching animals tag them and repeat to get (pop)
- 2. variety of life in a ecosystem
- 4. the first life in a area
- 6. a single living thing
- 7. what decomposes dad animals into soil
- 8. something that is alive example: cat
- 10. first species(organisms) in a area
- 11. shows the distribution of energy
- 12. a area where organisms interact with the environment
- 15. a organism that only eats plants