Communities (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards
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Community (definition)
Community (definition)
Multiple populations of different species living & interacting in same habitat
Species (definition)
Species (definition)
Group of similar organisms capable of interbreeding
Habitat (definition)
Habitat (definition)
Specific environment where an organism lives
Population (definition)
Population (definition)
Group of individuals of same species in a habitat
Intraspecific competition
Intraspecific competition
Competition within the same species
Interspecific competition
Interspecific competition
Competition between different species
Resources plants compete for
Resources plants compete for
Light, space, water, mineral ions (nitrates)
Resources animals compete for
Resources animals compete for
Space (territory), food, water, mates
Interdependence (definition)
Interdependence (definition)
How organisms in a community depend on each other for survival
Services in interdependence
Services in interdependence
Food, shelter, reproduction (pollination & seed dispersal)
Effect of adding/removing species from community
Effect of adding/removing species from community
Can greatly impact entire community; ripple effect altering population sizes
Stable community (definition)
Stable community (definition)
Biotic & abiotic factors balanced, population sizes constant
Examples of stable communities
Examples of stable communities
Tropical rainforests, oak woodlands, coral reefs
Ecosystem (definition)
Ecosystem (definition)
Community interacting with non-living (abiotic) environment