Which of the Following Statements About Alzheimer's Disease Is True

question 21

Multiple Choice

Which of the following statements about Alzheimer's disease is true?

• A) By 2030, the number of Americans with Alzheimer's is expected to be cut in half.
• B) At first, recent memory is most impaired, but as serious disorientation sets in, recall of distant events evaporates.
• C) Among the early symptoms of the disease are depression, loss of the ability to speak, and imaginary fears.
• D) Alzheimer's accounts for about one-quarter of all dementia cases, though at older ages, the percentage declines.

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Definitions:

Billion Cells

A reference to a quantity, indicating an organism or structure composed of approximately one billion cells.

Human Body

The physical structure of a person, comprising various biological systems that ensure survival and reproduction.

Multicellularity

The condition of an organism being composed of more than one cell, which allows for the differentiation of cells into specialized types and forms.

Billion Years

A unit of time equal to 1,000 million years, often used in geology, astronomy, and describing the age and evolution of the Earth and universe.