Which Is Not Composed of Gray Matter

question 103

Multiple Choice

Which is not composed of gray matter?

• A)basal ganglia
• B)cortex of the cerebrum
• C)centrum semiovale
• D)None of the above
• E)a, b, and c

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Definitions:

Porosity

The measure of a rock's ability to hold water, determined by the volume of voids or spaces within the rock.

Artesian Aquifer

A confined aquifer containing groundwater under positive pressure, causing water to rise above the surrounding water table when tapped.

Confined Aquifer

A confined aquifer is a water-bearing stratum of permeable rock, sand, or gravel that is trapped between layers of impermeable rock and is under pressure.

Perched Aquifer

A perched aquifer is a groundwater body that sits above the main water table, separated by a layer of impermeable rock or sediment, typically providing a limited and localized water source.