Across
- 2. organism where a parasites live
- 5. important physical factor is amount of drinking
- 6. A natural unit of living and non-living parts that interact to produce a stable system
- 8. Organism that feeds off another
- 10. Animal that is eaten by a predator
- 11. Study of living organisms
- 12. Factor that affects population numbers.
- 13. Relationship where two different organisms use the same resource such as food
- 16. organisms in a given area
Down
- 1. where an organism lives.
- 3. organisms of different species for a long period
- 4. animal that hunts prey
- 7. Relationship where animals help each other
- 9. Non-living or abiotic
- 10. Number of organisms of a species in an area
- 11. Living and non-living surroundings
- 14. physical factor in the environmentis water and air
- 15. important living or biotic factor.[