Ecology

2. large group of ecosystems that share the same climate and have similar types of communities.
3. physical area in which an organism lives
7. scientific study of all the interrelationships between organisms and their environment
9. biological community and all the nonliving factors that affect it
11. symbiotic relationship in which one organism benefits and the other organism is neither helped nor harmed
12. relatively thin layer of Earth and its atmosphere that supports life
14. symbiotic relationship in which both organisms benefit
15. any living factor in an organism’s environment
17. heterotroph that consumes both plants and animals
18. group of organisms of the same species that occupy the same geographic place at the same time
19. close mutualistic, parasitic, or commensal association between two or more species that live together
20. role, or position, of an organism in its environment

1. act of one organism feeding on another organism
4. all the interacting populations of different species that live in the same geographic location at the same time
5. organism that cannot make its own food and gets its nutrients and energy requirements by feeding on other organisms; also called a consumer
6. symbiotic relationship in which one organism benefits at the expense of another organism
8. any nonliving factor in an organism’s environment, such as soil, water temperature, and light availability
10. heterotroph that preys on other heterotrophs
13. heterotroph that eats only plants
16. organism that captures energy from sunlight or inorganic substances to produce its own food; provides the foundation of the food supply for other organisms; also called a producer