Shared Flashcard Set

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creative use of vocabulary
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16
Science
7th Grade
09/23/2011

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Cards

Term
VOCAB
Definition
Term
Natural selection
Definition
A process by which characteristics that make an individual better suited to its environment becoe more common in a species
Term
Adaptations
Definition
A behavior or physical characteristic that allows an organism to live successfully in its environment
Term
Niche
Definition
The role of an organism in its habitat,or how it makes its living
Term
Competition
Definition
The struggle between organisms to survive as they attempt to use the same limited resource
Term
Predation
Definition
An interaction in which one organism kills another for food
Term
Predator
Definition
The oragism that does the killing in a predation interaction
Term
Prey
Definition
An organism that is killed and eaten by another organism
Term
Symbiosis
Definition
A close relationship between two species that can be harvested regulary without reducing the future supply
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
Parasitism
Definition
A relationship in which one organism lives on or in a host interaction
Term
Parasite
Definition
The organism that benefits by living on or in a host in a parasitism inter action
Term
Host
Definition
The organism that a parasite lives in or on in a parasitism interaction
Term
Biotic factor
Definition
A living part of an organisms habitat
Term
Abiotic factor
Definition
A nonliving part of an organisms habitat
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