Freshwater Ecosystems Test

Match it! Select the correct answer from the pull down...Good luck!

Marine ecosystems have more ____ than freshwater ecosystems

Drifting organisms that float because they can't swim against the current are:

Land that is covered with water for at least part of the year is:

Organisms that can swim freely:

The difference between a swamp and a marsh is that a Swamp has

Rivers always flow:

The deepest part of a lake, without much sunlight:

Organisms like clams, mussels and barnacles that live near the bottom: