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Biology Definitions

Ecology is the study of the interactions among living things and their surroundings
Community is a group of different species that live together in one area, such as turtles, birds, fish and plants
Ecosystem includes all the organisms as well as the climate, soil, water, rocks and other nonliving things in a given area
Biome is a major regional or global community of organisms
Producer is an organism that gets their energy from nonliving resources, meaning they make their own food
Autotroph producers are also called autotrophs; prefix -auto mean self ; suffix -troph means nourishment
Consumer is an organism that get their energy by eating other living or once-living resources.
Heterotroph consumers are also called heterotrophs; prefix -hetero means different
Chemosynthesis is the process by which an organism forms carbohydrates using chemicals rather than light, as an energy source
Food Chain is a sequence that links species by their feeding relationships
Herbivore are organisms that eat only plants, such as desert cottontails
Carnivore are organisms that only eat animals, such as Harris's Hawks eat desert cottontails
Omnivore are organisms that eat both plants and animals, such as Kangaroo rats eat both seeds and insects
Detritivore are organisms that eat dead organic matter or detritus, such as a millipede that feeds on particles of detritus
Decomposer are detritivores that break down organic matter into simpler compounds, such as microorganisms and fungi
Generlists are consumers that have a varying diet
Trophic Levels are levels of nourishment in a food chain
Food Web is a model that shows the complex network of feeding relationships and the flow of energy within and sometimes beyond an ecosystem
Created by: brianamitchell



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