Question

Ecological characters of lakes and rivers

Answer 1

Answer:

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Answer 2

The answer to the given question is as follow:

Lakes:

• Lakes are distinguished from other bodies of surface water by the fact that they do not flow and contain a volume of water deep enough that sunlight cannot penetrate to the very bottom. Because the water is stationary, it is appropriate for ecosystems that lead sedentary lives where the water is not constantly flowing.
• Bacteria are at the bottom of the food chain in this ecosystem. They can float in water and form films on rocks and sand. They also form films on plant roots. Bacteria play an important role in decomposition and nutrient recycling. They are eaten by protozoa, which are then eaten by zooplankton. Zooplankton are small animals that float in water because they lack the ability to swim.

Rivers:

• River ecosystems include a state of continuous physical change many different (and changing) microhabitats variability in the flow rates of water plants and animals that have adapted to live within water flow conditions