Question

A) After an extreme disturbance, what is the first thing to form in an ecosystem? (1 point)
sand
the plant community
rock
a group of lichens

Answer 1

After an extreme disturbance, the first thing to form in an ecosystem is typically **a group of lichens**. Lichens are often among the first organisms to colonize bare rock and other harsh environments, helping to create soil for subsequent plant communities to establish.