I did buu whats the question?
The immune system, and the excretory system
(Honestly, all of them work to keep us 'healthy', but I believe these are the ones you're looking for)
Explanation:
climax community refers to a stable ecosystem in its final stage of ecological succession. Succession is when one community of plants and animals replaces another in an ecosystem. In a climax community, the plants and animals are in balance with each other and their environment.
Temperature, rainfall, and geological features would be the major abiotic factors that would determine plant distribution.