The Asthenosphere Is

question 26

Multiple Choice

The asthenosphere is

• A)the uppermost layer of the mantle.
• B)the boundary between the mantle and the core.
• C)a plastic layer in which the lithosphere is imbedded.
• D)the solid, dense layer below the Moho.

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Definitions:

Muscle Contraction

The shortening and/or development of tension within a muscle, allowing for movement and force generation.

Blood Clotting

The process by which blood changes from a liquid to a gel, forming a clot to stop bleeding.

Nerve Impulse

An electrical signal that travels along the nerve fiber, enabling communication between neurons or between neurons and muscles.

Intracellular Enzymes

Enzymes that operate within cells, facilitating biochemical reactions necessary for cellular metabolism and processes.