Question

show the pond and puddle ecosystem

Answer 1

A puddle is a small accumulation of liquid, usually water, on a surface.[1] It can form either by pooling in a depression on the surface, or by surface tension upon a flat surface. Apuddle is generally shallow enough to walk through, and too small to traverse with a boator raft.

Answer 2

Aquatic plants --->  smaller fish -------> bigger fish ---------> fish eating birds like duck or kingfisher, etc