Counting the number of species in a habitat is a measure ofMultiple choice question.species succession.biomass.species richness.net primary production.

As a measure of diversity, species evenness (relative abundance) isMultiple choice question.the proportion of the community that each species occupies.the total number of individuals occupying a habitat.the total number of species occupying a habitat.the successional stage of a community.

The number of different species in a pond is a reference toMultiple choice question.biomes.extinction.biomagnification.biodiversity.

A close and often lifelong ecological relationship between species is calledMultiple choice question.succession.species richness.a keystone.a symbiosis.

Complexity in an ecological community is the number of Blank______ at each trophic level and the total number of trophic levels.Multiple choice question.speciespredatorspopulationsherbivores

A gradual change in the species composition of a community over time is termedMultiple choice question.succession.species richness.species evenness.commensalism.