Which One of the Following Operates Primarily in Areas of Permafrost

question 13

Multiple Choice

Which one of the following operates primarily in areas of permafrost?

• A)soil creep
• B)mudflow
• C)solifluction
• D)rock avalanche

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Definitions:

Sarcomere

The basic contractile unit of muscle fiber, consisting of actin and myosin filaments between two Z-lines in striated muscle cells.

T Tubule

Tubular extensions of the plasma membrane in muscle cells that facilitate the uniform contraction of the muscle by spreading electrical impulses.

Myosin

A protein that, along with actin, enables muscular contraction and movement in animal cells.

Serotonin

A neurotransmitter that is involved in the regulation of mood, sleep, appetite, and pain perception.