Unit 1 performance assessment

4. symbiotic relationship in which one organism benefits at the expense of another
7. measure of variation at the genetic, species, and ecosystem level
8. an animal that feeds primarily or exclusively on animal matter
9. organism that feed on another
10. chemical or biological substance which harms water, air, or land quality
15. introduces organism that becomes overpopulated and harms its new environment
16. process of liquid state changing to a gaseous state
19. "S" shaped curve, occurs when growth rate of a population decreases as the number of its members increases, it occurs when an environment has limited resources
22. animals that can feed themselves on both the plants and other animals
23. living parts of an ecosystem
24. an educated guess
25. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings

1. symbiotic relationship in which one species benefit while the other is neither harmed nor helped
2. a close and prolonged interaction between organisms of different species
3. study of nature and all things in it
5. nonliving parts of an ecosystem
6. obtains its nutrition by feeding on dead plant and animal material
11. unrestricted growth of a population of organisms occurring when resources in its habitat are unlimited
12. kind of animal whose diet comprises of solely plants
13. a chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as a part of the nitrogen cycle
14. facts and statistics collected for reference or analysis
17. symbiotic relationship in which mutually beneficial to both living things
18. organism that predators kill for food
20. water or gaseous state changing to liquid state
21. any liquid or frozen water that forms in the atmosphere and falls back to the earth in rain, sleet, and snow