Edexcel GCSE Biology · 1BI0
Specification 9.5, 9.6 · Paper 2
Revise: Field Work InvestigationThis core practical investigates the relationship between organisms and their environment. It uses a belt transect to sample organisms across an environmental gradient—for example, from deep shade beneath a tree to unshaded ground—and measures an abiotic factor at the same positions. Matching the biological and environmental measurements makes it possible to look for an association between them.
- Revise: Determining Organism Numbers
Placing quadrats at regular intervals along a line to record how organisms change in number with distance.