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science flashcards
last term
Term | definition |
---|---|
emigration | means leaving or exiting a population |
limiting factors | The number of individuals in an area of a specific size |
Population Density | An environmental factor that causes a population to stop growing or decrease in size. |
Carrying Capacity | The largest population that an area can support. |
Niche | The role of an organism in its habitat is called a niche |
Competition | Competition is a relationship between organisms in which one is harmed when both are trying to use the same resource related to growth, reproduction, or survivability. |
Cooperation | When members of the same species work or act together for a common purpose or benefit |
Predation | An interaction in which one organism kills another for food or nutrients is called predation |
Predator | The organism that does the killing is called the predator |
Prey | an animal that is hunted or killed by another animal for food. |
immigration | means moving into a population |
Symbiosis | Symbiosis is an ecological relationship between two species that live in close proximity to each other. |
Mutualism | Symbiosis where both species benefit |
Commensalism | Symbiosis where one species benefits and the other is neither helped nor harmed |
Parasitism | Symbiosis where one species benefits and the other is harmed. The parasite benefits the host is harmed. |
parasite | an organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense. |
host | an animal or plant on or in which a parasite or commensal organism lives. |