Flashcards
AQA A2 Biol4 - Population
Flashcards do conjunto (12)
- 1EcosystemSelf-contained unit made up of the biotic and abiotic factors in an area
- 2PopulationA group of individuals of the same species in a habitat
- 3CommunityThe organisms of all species that live in the same area
- 4HabitatThe place where an organism normally lives
- 5NicheAll the conditions and resources required for an organism to survive and reproduce. (its 'role')
- 6Random SamplingSampling a population to eliminate bias
- 7Systematic SamplingRegular sampling across an area
- 8Mark-Release-Recapturepopn size=
No. in first sample * No. in second sample
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marked animals in second sample - 9Abiotic FactorsThe non-living factors of an environment
- 10Biotic FactorsThe living factors of an environment
- 11Interspecific CompetitionCompetition between organisms of different species
- 12Intraspecific CompetitionCompetition between organisims of the same species