Key term for AQA GCSE Biology, used in Interactions in Ecosystems.
A large difference in the concentration of a substance between two areas, which increases the rate of diffusion.
Steep concentration gradient appears in AQA GCSE Biology revision content for Ecology, especially Interactions in Ecosystems and Abiotic Factors.
Create a free account to access AQA GCSE Biology revision notes, track progress, and practise related key terms.
