The Layer Below the O Horizon in an Idealized Profile

question 45

Multiple Choice

The layer below the O horizon in an idealized profile

• A)E horizon
• B)soil
• C)dirt
• D)A horizon
• E)horizon
• F)intercropping
• G)shelterbelts
• H)rangeland
• I)parent material
• J)profile

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Definitions:

Schwann Cells

Specialized cells in the peripheral nervous system responsible for the formation of myelin, which speeds up the electrical impulses in neurons.

Ependymal Cells

Glial cells that line the ventricles of the brain and the spinal cord, involved in the production of cerebrospinal fluid.

Glial Cells

Glial cells, or neuroglia, are non-neuronal cells in the central and peripheral nervous systems that support and protect neurons.

Ependymal Cells

Glial cells that line the ventricles of the brain and the central canal of the spinal cord, involved in the production of cerebrospinal fluid.