2.3 Measuring the biotic components of the system
2.3.1 - Construct simple keys and use published keys for the identification of organisms.
2.3.2 - Describe and evaluate methods for estimating abundance of organisms.
2.3.3 - Describe and evaluate methods for estimating the biomass of trophic levels in a community.
2.3.4 - Define the term diversity.
2.3.5 - Apply Simpson’s diversity index and outline its significance.