10 Interesting Fact About The biology and ecology of freshwater systems

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• River is one of the most common types of freshwater systems in nature.
• Freshwater contains a little salt and other minerals, so it is very different from sea water.
• Freshwater ecosystems are very complex and involve many organisms such as fish, amphibians, insects, and aquatic plants.
• The river can change shape and direction naturally due to changes in water flow and erosion.
• In the river, there are various types of algae, which play an important role in maintaining the balance of freshwater ecosystems.
• Some types of fish can only live in fresh water, and they have a unique way to survive in different environments.
• The river also provides a lot of resources for humans, such as drinking water, irrigation, and electrical energy.
• Bacteria and other microorganisms play an important role in breaking down organic waste in freshwater.
• Freshwater ecosystems are very vulnerable to pollution and extreme weather changes, such as floods and drought.
• There are many unique species that are only found in certain rivers around the world, and they are often the target of conservation and protection.