JD Class

💡GENERAL SCIENCE⚗

💧Aquatic Ecosystem🐬

Organisms which survive in water are called aquatic organisms. They depend on water for their food, shelter, reproduction and all other life activities.

Freshwater: They cover only a small portion of earth nearly 0.8 percent. Freshwater involves lakes, ponds, rivers and streams, wetlands, swamp, bog and temporary pools. Freshwater habitats are classified into lotic and lentic habitats. Water bodies such as lakes, ponds, pools, bogs and other reservoirs are standing water and known as lentic habitats. Whereas lotic habitats represent flowing water bodies such as rivers, streams.

Marine: Marine ecosystem covers the largest surface area of the earth. Two –third of earth is covered by water and have the major share (about 71 percent). They constitute of oceans, seas, intertidal zone, reefs, seabed, estuaries, hydrothermal vents and rock pools.

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