Which Statement Best Describes Recent Changes in the U

question 33

Multiple Choice

Which statement best describes recent changes in the U.S.ethnic system?

• A)The ethnic composition of the U.S.has become less diverse.
• B)Increasing ethnic diversity makes traditional classification schemes viable.
• C)Ethnic groups of Euro-American descent still maintain cultural dominance.
• D)Ethnic disparities between Asian Americans and African Americans have dissipated.

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Definitions:

Sarcoplasmic Reticulum

A specialized type of smooth endoplasmic reticulum found in muscle cells, involved in the regulation of calcium ions.

H-band

A region within the sarcomere of striated muscle fibers that shortens during muscle contraction and is situated between the filaments of actin and myosin.

Glycerinated Muscle Fibers

Muscle fibers treated with glycerol to remove cellular contents while preserving the structure, used in experiments to study muscle contractions.

ATP

Adenosine triphosphate, a molecule that carries energy within cells for metabolism.