The correct answer In a flowing-water ecosystem, water moves quickly near the source and slowly near the mouth and Water in a standing- water flow within ecosystem despite having little net flow.
Standing water has little water circulation and supports free floating organisms, whereas flowing water ecosystems have a higher rate of water circulation and support a broader range of organisms.
Ecosystems in which plant roots are submerged in water for at least part of the year. Typically found where water and land meet. Marshes, bogs, and swamps are some examples. Because it is standing water, water has a low oxygen content.
Flowing waters means fresh waters flowing unidirectionally down altitudinal gradients. These waters may or may not be separated by channels. Flowing waters include streams, springs, seeps, ditches, and flumes.
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