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24 Cards in this Set

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  • Back
ecology
the study of interactions between organisms and their environment
biotic
all living things in an environment
abiotic
nonliving factors in an environment
population
a group of individuals of the same species that live together in the same place and time
community
all of the populations of different species that live and interact in an area
ecosystem
a community of organisms and its abiotic environment
biosphere
part of the earth where life exists
herbivore
a consumer that eats plants
carnivore
a consumer that eats meat
omnivore
a consumer that eats both meat and plants
scavenger
animals that eat the bodies of dead animals
food chain
a diagram that represents how the energy in food molecules flows from one organism to the next
food web
a complex diagram representing the many pathways in a real ecosystem
energy pyramid
a diagram shaped like a triangle that shows the loss of enerbgy at each level of the food chain
habitat
the environment in which an organism lives
niche
an organism's way of life within its ecosystem
carrying capacity
the largest population that a given environment can support over a long period of time
prey
an organism that is eaten by another organism
predator
the organism that eats the prey
symbiosis
a close long term association between 2 or more species
mutualism
a symbiotic relationship in which both organisms benefit
commensalism
a symbiotic relationship in which one organism is benefited and the other in unaffected
parasitism
a symbiotic relationship in which one organism benefits and the other is harmed
coevolution
a long term chage that takes place in 2 species because of their close interactions with one another