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Ecology

Vocabulary

TermDefinition
ecology the study of living things and their environment
biotic describes living factors in the environment
abiotic describe the nonliving part of the environment including water, rocks, light, and temperature
5 levels of environmental organization organisms, population, community, ecosystem, and biosphere
organism a living thing; anything that can carry out life processes independently
population group of organisms of the same species that live in a specific geographical area
community Consist of all of the populations of species that live and interact in an area
ecosystem made up of a community of organisms and the abiotic environment
biosphere part of Earth where life exist
producer / autotroph organisms that use sunlight directly to make food
Consumer/ heterotrough organisms that eat other organisms
herbivore A consumer that only eats plants
carnivore consumer that eats animals
omnivore eats both plants and animal
scavenger omnivores that eat both dead plants and animals
Decomposer organism that get energy by breaking down dead organisms
food web diagram that shows feeding relationship between organisms in an ecosystem
food chain diagram that shows how energy in food flows from one organism to another
energy pyramid diagram that shows an ecosystem's loss of energy
limiting factor a resource that is so scared it limits the population
carrying capacity largest population that an environment can support
predator organism that eats prey
Prey Organism being eaten
Predator Adaptations Ability to catch and eat prey
Prey Adabtations Ability to keep from being eaten
Symbiosis a closed, long- term associate between two or more species
mutualism symbiotic relationship in which both organisms benefit
commensalism symbiotic relationship in which one organism benefits and other is unaffected
Parisitism Symbiotic relationship in which one organism benefits while the other is harmed
Created by: 200320790
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