What is biodiversity?
The variety of living organisms in an area.
AQA GCSE Combined Science: Trilogy (8464) — Biology — Foundation · 4.7.3.1
Revise AQA GCSE Combined Science: Trilogy (8464) — Biology — Foundation specification point 4.7.3.1, Biodiversity, with free active-recall flashcards. Flip through the set or review every question and answer below.
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What is biodiversity?
The variety of living organisms in an area.
At what spatial scales can biodiversity be considered?
From a small local habitat to the whole Earth.
What is species richness in a community?
The number of different species present.
What does species richness not describe about a community?
How individuals are distributed among the species.
What does interdependence mean in a community?
Species depend on other species for resources or services.
What are four resources or services for which species may depend on one another?
Food, shelter, pollination and seed dispersal.
How can removing one species affect the wider community?
Changes in species that depend on it can have further effects throughout the community.
What is a stable community?
A community where species and environmental factors are in balance and population sizes remain fairly constant, though they may fluctuate.