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Ecology Vocabulary

Ecology The study of how living things interact with one another and with their environment.
Biotic a living part of an ecosystem
Abiotic a nonliving part of an ecosystem
5 levels of environmental organization Organism, Population, Community, Ecosystem, Biosphere
Organism obtains food, water, shelter, and other things it needs to live, grow, and reproduce from it surroundings
Population all members of the same species that live in a specific area
Community different populations that live together in an area
Ecosystem the community and abiotic factors together
Biosphere regions of the surface atmosphere and hydrosphere of the Earth occupied by living organisms
Producer/Autotroph Organisms that use sunlight directly to make food
Consumer/Heterotroph Organisms that eat other organisms
Herbivore an animal that only feeds on plants
Carnivore an animal that only feeds on other organisms (meat)
Omnivore an animal that feeds on both plants and animals
Scavenger omnivores that eat dead plants and animals
Decomposer organisms that get energy by breaking down dead organisms
Food Web a diagram that shows feeding relationships between organisms in an ecosystem
Food Chain a diagram that shows how energy in food flows from one organism to another
Energy Pyramid a diagram that shows an ecosystem's loss of energy
Limiting Factor a resource that is so scarce that it limits the size of a population
Carrying Capacity largest population that an environment can support
Predator Organism that eats prey
Prey Organism that gets eaten
Predator Adaptions Speed, color that camouflages them, small senses, claws, teeth, fangs, stingers
Prey Adaptions Camouflage, Warning Coloration, retreating
Symbiosis a close, long-term association between two or more species
Mutualism a symbiotic relationship in which both organisms benefit
Commensalism a symbiotic relationship in which one organism benefits and the other is unaffected
Parasitism a symbiotic association in which one organism benefits while the other is harmed
Created by: medw30