Compare primitive communities to climax communities.

Answer:

Primitive communities are common in areas undergoing primary succession. They are composed of rocks, lichens, algae, and fungus. The primitive communities lead to the production of soil, which allows the community to proceed into the next phase of succession, where more complex organisms can be sustained. Once a community has developed soil, more plants can be sustained and animals can begin to return to the ecosystem. Eventually, the community reaches its climax. Climax communities are composed of a large variety of complex organisms. Climax communities are stable. Changes occur in climax communities, but the overall ecosystem remains in balance.