a pond is an example of a small ecosystem in a big ecosystem.
The water from a pond is not a homogeneous mixture.
that depends on a lot of things, for example how large you would your pond to be.
Fishes swam merrily under the surface of the pond.
duckweed and water lily
An e ecosystem.
21,825 square feet. For example, a rectangular pond about 220' x 100'. Or a circular pond about 165' in diameter.
The singular noun is pond; the plural noun is ponds.
A duck flies to another pond
Leeches attaching to fish or turtles
Grass dumbos
Example like you are having a cold, and your nose is dripping like a ripples from a stone thrown into a pond. It's like, dropping.
A shark fights with a fish.