6th grade science pg39 sec 3 key terms

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13 terms · hw 5/10

natural selection

a natural process resulting in the evolution of organisms best adapted to the environment

adaptation

the process of adapting to something (such as environmental conditions)

niche

(ecology) the status of an organism within its environment and community (affecting its survival as a species)

competition

the struggle between organisms to survive in a habitat with limited resources

predation

the act of preying by a predator who kills and eats the prey

predator

any animal that lives by preying on other animals

prey

animal hunted or caught for food

symbiosis

the relation between two different species of organisms that are interdependent

mutualism

the relation between two different species of organisms that are interdependent

commensalism

the relation between two different kinds of organisms when one receives benefits from the other without damaging it

parasitism

the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage)

parasite

an animal or plant that lives in or on a host (another animal or plant)

host

an animal or plant that nourishes and supports a parasite

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