Across
- 1. organisms that require a ready made source of food
- 4. relationship between two organisms living closely together where each benefits the other
- 5. the study of how organisms interact with one another in an environment
- 6. relationship between two organisms where one organisms lives on or in the other and feeds off it
- 9. a non living factor of the environment
- 11. all the factors in an organisms surroundings that affect it
- 12. a major regional or global living community characterized by the domain organisms and climate
Down
- 1. a relationship betwen two organisms when one gains and the other is unharmed
- 2. a place where plants and animals form a balanced environment with their physical surroundings
- 3. a relationship between two organisms where one organism kills and eats the other
- 7. where an organism lives
- 8. a living factor of the environment
- 10. an organism that creates food for its community
