Question

question 5
bryozoans are microscopic aquatic invertebrates that live in colonies. some colonies of these organisms are attached to rocks and others are in jelly blobs. scientists have studied the fossils of these organism and found that bryozoans remained the same for 40 million years, then there was burst of change. then, fossil evidence showed that the evolution slowed down again.
which type of evolution, co - evolution, divergent, adaptive radiation, convergent, or punctuated equilibrium is best represented by these two organisms? justify your answer.

Explanation:

Punctuated Equilibrium is characterized by long periods of stasis (little evolutionary change) followed by short bursts of rapid evolutionary change. The problem states Bryozoans remained the same for 40 million years (stasis) and then had a burst of change, followed by slowing down again, which matches the pattern of punctuated equilibrium.

Answer:

Punctuated Equilibrium