Pernicious Anemia Occurs When There Is a Deficiency of Which

question 33

Multiple Choice

Pernicious anemia occurs when there is a deficiency of which vitamin?

• A) B12
• B) B5
• C) B6
• D) B2

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Definitions:

Ozone Layer

A layer in the earth's stratosphere containing a high concentration of ozone, which absorbs most of the sun's ultraviolet radiation.

Ice Crystals

Water molecules in the solid state that manifest in symmetrical patterns, typically forming under low temperature conditions in the atmosphere or on surfaces.

Southern Hemisphere

The half of Earth that lies south of the equator, encompassing parts of South America, Africa, Australia, and Antarctica.

CFCs

stands for chlorofluorocarbons, which are compounds previously used in aerosols, refrigerants, and foam blowing agents that contribute to ozone layer depletion.