Alpine Permafrost Is Restricted to Elevations at Which the Mean

question 53

True/False

Alpine permafrost is restricted to elevations at which the mean annual temperature is below freezing.

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Definitions:

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.

Sciatic Nerve

The largest nerve in the human body, running from the lower back down through the buttock and into the lower limb, responsible for sensation and movement in the leg.

Phagocytes

Cells within the body capable of engulfing and absorbing bacteria and other small cells and particles.

Meninges

Three protective membranes that surround the brain and spinal cord.