AP BIOLOGY

Detailed explanation-1: -Freshwater is found in glaciers, lakes, reservoirs, ponds, rivers, streams etc. Freshwater habitats are less than 1% of the world’s total surface area.

Detailed explanation-2: -Lotic Freshwater Ecosystem Rivers and streams are common examples of lotic ecosystems. There are many rivers and stream that flows from their origin and ultimately meets with other water channels or oceans at its mouth. Lotic freshwater travel through different locations from its source to mouth.

Detailed explanation-3: -Fresh water is found in glaciers, lakes, reservoirs, ponds, rivers, streams, wetlands and even groundwater.

Detailed explanation-4: -The source of the water in lakes, reservoirs, and ponds may be rivers, streams, groundwater, rainfall, melting snow runoff, or a combination of these. Any of these sources may carry contaminants. Because water exits from these water bodies at a slow rate, pollutants can become trapped and build up.

Detailed explanation-5: -Rivers, creeks, lakes, ponds, and streams are all freshwater habitats. So are wetlands like swamps, which have woody plants and trees; and marshes, which have no trees but lots of grasses and reeds. Freshwater accounts for only three percent of the world’s water. (The rest is saltwater.)