Richness, evenness and biodiversity
Richness, evenness and biodiversity

A habitat is the place where an organism lives, and a community is all the populations of different species living and interacting there at the same time. Biodiversity is the variety of living organisms in an area, and you should always state the scale, such as one pond, one field, or the whole Earth.
Step-by-step lessons on AQA A Level Biology Biodiversity within a community. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.