<P> There are three basic types of freshwater ecosystems: </P> <Ul> <Li> Lentic: slow moving water, including pools, ponds, and lakes . </Li> <Li> Lotic: faster moving water, for example streams and rivers . </Li> <Li> Wetlands: areas where the soil is saturated or inundated for at least part of the time . </Li> </Ul> <Li> Lentic: slow moving water, including pools, ponds, and lakes . </Li> <Li> Lotic: faster moving water, for example streams and rivers . </Li>

How are aquatic ecosystems similar to ecosystems on land how are they different