Across
- 3. Contain carbon, can be burned for energy but that released carbon into the atmosphere
- 4. The nitrogen cycle depends on this to fix nitrogen into a usable form
- 7. animal that must get its energy from eating other animals
- 9. Many groups of different animals together
- 12. the percent of energy that moves up to the next animal on a trophic pyramid
- 13. Organisms that are not from an area but come and do harm to an area
- 14. what is being measured in an experiment
- 16. where one species benefits and the other does not benefit but is also not harmed
- 17. an educated guess as to how the experiment will turn out
Down
- 1. Living things within an ecosystem
- 2. an animal who eats secondary consumers
- 5. Where one species benefits but the other is harmed
- 6. bottom of the food chain and can make their own food
- 8. A group of animals of the same species
- 10. What is being changed in an experiment to test its impacts
- 11. animal that eats both plants and animals
- 15. A community plus the abiotic factors that are around the community