Lesson 9 Principles of Ecology
(Ava)
Study online at https://quizlet.com/_8zbewp
1. Ecology the scientific discipline in which the relationships among
liv- ing organisms and the interaction the organisms
have with their environments are studied
2. Biosphere portion of earth that supports life
3. Biotic factor Any living part of the environment with which an
organism might interact
4. Abiotic factor Abiotic factors are the non-living parts of an
organism's habi- tat.
5. Population A group of individuals that belong to the same
species and live in the same area at the same time
6. Biological community a group of interacting populations that occupy the
same
geographic area at the same time
7. Ecosystem A community of organisms and their abiotic
environment
8. Biome A group of ecosystems that share similar climates and
typical organisms
9. Habitat Place where an organism lives
10. Niche An organism's particular role in an ecosystem, or how
it makes its living.
11. Symbiosis A relationship in which two ditterent organisms live in
close association with each other
12. Mutualism A relationship between two species in which both
species benefit
13. Commensalism
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9
, Lesson 9 Principles of Ecology
(Ava)
Study online at https://quizlet.com/_8zbewp
A relationship between two organisms in which one
organism benefits and the other is unattected
14. Parasitism One organism benefits and the other is harmed
15. Autotroph An organism that makes its own food
16. Heterotroph organism that obtains energy from the foods it
consumes; also called a consumer
17. Producer An organism that can make its own food.
18. Consumer An organism that obtains energy by feeding on other
organ- isms
19. Herbivore A consumer that eats only plants.
20. Carnivore A consumer that eats only animals.
21. Omnivore An animal that eats both plants and animals
22. Detritivore organism that feeds on plant and animal remains
and other dead matter
23. Trophic level Each step in a food chain or food web
24. Food chain A series of events in which one organism eats
another and obtains energy.
25. Food web A community of organisms where there are several
interrelat- ed food chains
26. Biomass the total mass of organisms in a given area or volume.
27. Matter Anything that has mass and takes up space
2/
9
(Ava)
Study online at https://quizlet.com/_8zbewp
1. Ecology the scientific discipline in which the relationships among
liv- ing organisms and the interaction the organisms
have with their environments are studied
2. Biosphere portion of earth that supports life
3. Biotic factor Any living part of the environment with which an
organism might interact
4. Abiotic factor Abiotic factors are the non-living parts of an
organism's habi- tat.
5. Population A group of individuals that belong to the same
species and live in the same area at the same time
6. Biological community a group of interacting populations that occupy the
same
geographic area at the same time
7. Ecosystem A community of organisms and their abiotic
environment
8. Biome A group of ecosystems that share similar climates and
typical organisms
9. Habitat Place where an organism lives
10. Niche An organism's particular role in an ecosystem, or how
it makes its living.
11. Symbiosis A relationship in which two ditterent organisms live in
close association with each other
12. Mutualism A relationship between two species in which both
species benefit
13. Commensalism
1/
9
, Lesson 9 Principles of Ecology
(Ava)
Study online at https://quizlet.com/_8zbewp
A relationship between two organisms in which one
organism benefits and the other is unattected
14. Parasitism One organism benefits and the other is harmed
15. Autotroph An organism that makes its own food
16. Heterotroph organism that obtains energy from the foods it
consumes; also called a consumer
17. Producer An organism that can make its own food.
18. Consumer An organism that obtains energy by feeding on other
organ- isms
19. Herbivore A consumer that eats only plants.
20. Carnivore A consumer that eats only animals.
21. Omnivore An animal that eats both plants and animals
22. Detritivore organism that feeds on plant and animal remains
and other dead matter
23. Trophic level Each step in a food chain or food web
24. Food chain A series of events in which one organism eats
another and obtains energy.
25. Food web A community of organisms where there are several
interrelat- ed food chains
26. Biomass the total mass of organisms in a given area or volume.
27. Matter Anything that has mass and takes up space
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