5(a)
5(a) The organism in the environment
5 specification points in sub-topic 5(a).
Specification points
5.15.25.3B5.4B5.5
5.1: Population, community, habitat and ecosystem
Population, community, habitat and ecosystem: what each term means.
5.2: Population size using quadrats
Practical: using random quadrats to estimate and compare population sizes in two areas.
5.3B: Biodiversity
Biodiversity: the variety of species in an area, and how evenly individuals are spread among them.
5.4B: Distribution and biodiversity using quadrats
Practical: using a transect to study distribution, and quadrats to compare biodiversity.
5.5: Abiotic and biotic factors
How abiotic and biotic factors affect where organisms live and how many there are.