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creative use of vocabulary
define 15 words from the chapter
15
Science
7th Grade
09/25/2011

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Cards

Term
Biotic factor
Definition
a living part of an organisms habitat.
ex. lion,tree,plant.
Term
Abiotic factor
Definition
a nonliving part of an organisms habitat.
ex. sun,dirt,water.
Term
Population
Definition
population is all the members of one species in a particular area.
Term
community
Definition
a community is all the different populations that live together in an area.
Term
limiting factors
Definition
limiting factor is an environmental factor that causes a population to decrease. ex. food, water, shelter.
Term
predation
Definition
predation is an interaction in which one organism kills another for food.
Term
competition
Definition
competition is the struggle between organisms to survive as they attempt to use the same limited resource.
Term
mutualism
Definition
a relationship between two species in which both species benefit.
Term
commensalism
Definition
a relationship between two species in which one species benefits and the other is neither helped nor harmed.
Term
paratism
Definition
paratism is a relationship in wich one organism live on or in a host and harms it.
Term
succession
Definition
succession is the series of predictable changes that occur in a community over time.
Term
niche
Definition
the role of an organism in its habitat, or how or how it makes its living.
Term
natural selection
Definition
a process by which characteristics that make an individual better suited to its environment became more common in a species.
Term
habitat
Definition
an environment that provides the things an organism needs to live,grow,and reproduce.
Term
ecosystem
Definition
an ecosystem is the community of organisms that live in a particular area, along with their nonliving surroundings.
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