An example of high species richness isMultiple choice question.a community consisting of pioneer species.the dominance of one species in an ecosystem.the 15 individuals of large-mouth bass in a lake.the 15 different fish species in a lake.

Species richness is the most common measure of

Species diversity is highest when ________.Group of answer choicesspecies richness is high and relative abundance is unevenly distributedspecies richness is low and relative abundance is unevenly distributedspecies richness is low and relative abundance is evenly distributedspecies richness is high and relative abundance is evenly distributed

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

Select all of the statements that only describe the species richness for an area.Multiple select question.There are 25 animal species on the island.The number of plant species in the pond dropped from 14 to 11 last years.There are 10 reptile species in the area but their ranges don't overlap much.There are 40 species of insects in the field and they are equally spread out.

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