Use These Processes for the Following Questions

question 89

Multiple Choice

Use these processes for the following questions.
-Which process is the primary source of the atmospheric gases on Earth?

• A)outgassing from volcanoes
• B)evaporation and vaporization
• C)bombardment
• D)thermal escape
• E)chemical reactions with surface material

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Definitions:

Myelination

The process of forming a myelin sheath around the axons of neurons, which speeds up the transmission of electrical signals in the nervous system.

Second Decade

Refers to the period of time spanning from year 11 to year 20 in a century, a person's life, or any given time frame.

Neuron

A cell within the nervous system that transmits information to other nerve cells, muscle, or gland cells.

Cell Body

The part of a neuron that contains the nucleus and most of the cytoplasm and where the metabolic work of the cell is done.