Sci Sci

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ecology

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the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.

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community

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a group of interdependent organisms of different species growing or living together in a specified habitat:

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ecosystem

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a biological community of interacting organisms and their physical environment.

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biome

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a large naturally occurring community of flora and fauna occupying a major habitat, e.g., forest or tundra.

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biotic

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of, relating to, or resulting from living things, especially in their ecological relations.

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abiotic

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physical rather than biological; not derived from living organisms.

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biodiversity

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the variety of life in the world or in a particular habitat or ecosystem.

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keystone species

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a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

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Producer

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an organism that makes, grows, or supplies food.

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autotroph

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an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

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consumer

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a person or thing that eats or uses something.

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hetrotroph

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an organism deriving its nutritional requirements from complex organic substances.

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chemosynthesis

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the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight.

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food chain

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a hierarchical series of organisms each dependent on the next as a source of food.

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herbivore

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a mammal that only eats plants

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carnivore

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a mammal that only consumes meat

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omnivore

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A mammal that eats both plant and meat (Humans)

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detrivore

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an animal that feeds on dead organic material, especially plant detritus.

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decomposer

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an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.

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specialist

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a person who concentrates primarily on a particular subject or activity; a person highly skilled in a specific and restricted field.

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generalist

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a person competent in several different fields or activities.

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trophic level

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The trophic level of an organism is the position it occupies in a food chain. The word trophic derives from the Greek τροφή (trophē) referring to food or feeding. A food chain represents a succession of organisms that eat another organism and are, in turn, eaten themselves.

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food web

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just like a food chain but longer.