The leaves and stems provide surfaces on which crustaceans, aquatic insects and other food organisms attach and grow, and the plants' process of photosynthesis replenishes the water's vital oxygen supply.
(The leaves; stems; provide surfaces) (surfaces; attach; crustaceans, aquatic insects and other food organisms) (surfaces; grow; ) (the plants' process of photosynthesis; replenishes; the water's vital oxygen supply)
The leaves surfaces surfaces the plants' process of photosynthesis
stems attach grow replenishes
provide surfaces
crustaceans, aquatic insects and other food organisms
the water's vital oxygen supply