Ecology and the Environment

1. all the members of a species living in an area
2. in parasitism, the organism that is lived on or in
3. symbiosis, 1 species benefits but the other doesn’t but is not harmed
4. the study of how organisms interact with the environment
6. moving into a population
9. must feed on other organisms for food
10. struggle between organisms to survive
11. a gas changing back into a liquid
13. organisms that can mate and produce offspring that can produce offspring
15. one organism kills another for food or nutrients
18. behaviors and characteristics that allow organisms to live successfully
19. relationship where two species live closely together and at least one benefits
20. nonliving parts of a habitat
22. in predation, the one that gets killed
23. organisms that break down biotic waste and dead organisms
27. all the different populations live together in an area
29. an environment that provides things a specific organism needs
30. eats both plants and animals
31. eats only plants

1. drops of water falling from the clouds in the form of rain, sleet snow, or hail
2. can make it’s own food
5. a living Thing
7. part of a habitat that is living or once living
8. leaving a population
12. molecules of liquid water absorbing energy and changing to a gas
14. symbiosis, 1 species benefits but the other doesn’t and is harmed
16. the role of an organism in it’s environment
17. things used by people such as trees, water, & coal
21. eats only animals
22. contamination of Earth’s land, water or air
24. all the organisms in an area along with it’s nonliving environment
25. in predation, the one that does the killing
26. special carnivore that eats dead animals
28. symbiosis, where both species benefit
29. in parasitism, the organism that benefits