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The biological component includes the plants, animals, insects, earthworms, nematodes, arthropods, protozoa, fungi, and bacteria that live in the soil. The biological community is a very important component of soil health.1 Jun 2018

In humans and other mammals, its components include the heart, blood vessels, and blood.

Biochemical cycle

A biochemical cycle is the transport and transformation of chemicals in ecosystems. These are strongly influenced by the unique hydrologic conditions in wetlands. These processes result in changes in the chemical forms of materials and also the movement of materials within wetlands.

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