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26 Cards in this Set

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Ecology
is the study of the interactions between organisms and their envierments.
Biotic
the part of the envirorment is all of the organisms that live together and interact with one another.
abiotic
the part of the environment includes all of the physical factors-such as water, soil, light, and temputure- that affect organisms living in a particular area.
populations
a salt marsh is a costal area were grasslike plants grow. A population is a group of individuals of the time. for example, all of the seaside sparrows that live together in a salt marsh members of a population. The invaliduals in the population compete with one another for food, nesting space,and mates.
communities
a community consists of all of the populations of different species that live and interact in an area
ecosystems
an ecosystem is made up of a community of organisms and its abiotic environments.
biosphere
the biosphere is the part of earth where life exists
consumers
organisms that eat produce or other organisms for energy called consumer
herbivore
a herbivor is a consumer that eats plants
carnivor
is a consumer that eats animals
omnivores
eat a verity of organisms plants and animals
scarvenger
are animals that feed on bodys or dead animals
decomposer
organisms that get energy by breaking down the remains of dead organisms of decomposers.
food chain
represents how energy in food molecules flows fgrom one organism to the next
food web
the many energy pathways possible are more accuratly shown by a food web
energy pyramid
the loss of energy at each level of the food chain can be represented by an enertgy pyamid
niche
an organisms way of life within an ecoysestem is its niche
habit
an organisms habit is the envirment in witch it leves
Carrying Capacity
The largest population that a given environment can support over time.
prey
the organism that is eten.
predator
the organism that eats the prey.
symbiosis
close long term association between two or more spcies.
mutualism
a symbiotic relationship in which both organisms benefit.
interations among organismas
population contain interacting induviduals of a singal species
competition
when two or more individuals or populations
predators and prey
many interactions among species occur because one organisma eats onother