Which phrase best describes a climax community?

The correct answer is B. A stable community.

During plant succession new community gets established at an area which had been uninhabited. The community which gets established at the site is called climax community. Thus, a climax community is the final stage of biotic succession which remains stable and exist in balance with each other and their environment until it destroyed fire or human interference.

Option B

Explanation: The climax community can be defined as the stable community. This is a very term which is used for the biological community of animals , plants and fungus which has gone through the ecological succession in the formation of the vegetation in a particular area over a period of time, have reached a steady state.

The pioneer species grows on a bare land and then it grows into plant and attains a stable state.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.