Succession occurs whenMultiple choice question.a keystone species is removed.one species is harmed while another benefits.a chemical becomes more concentrated in organisms at higher levels in the food chain.a community's species composition gradually changes over time.

Explain the concept of ecological succession and its importance in ecosystem development.

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

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

Select all the statements that apply to secondary succession.Multiple select question.It can occur on bare lifeless substrate.It can be triggered by fires or agriculture.It can take place after glaciers expose land.It can occur in places where a community has been disturbed.

Describe the concept of succession