Which of the following does not contribute to skin color?

A. Hemoglobin
B. Melanin
C. Keratin
D. Carotene
E. All of the choices contribute to skin color.


C. Keratin

Anatomy & Physiology

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The innermost layer of the heart wall is the

A) parietal and visceral layers of the epicardium. B) endocardium C) fibrous pericardium. D) connective tissue. E) myocardium.

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A synapse is located at the neuromuscular junction

Answer the following statement(s) true (T) or false (F)

Anatomy & Physiology

Lymphocytes

A) are actively phagocytic. B) destroy red blood cells. C) respond to antigens. D) are primarily found in red bone marrow. E) decrease in number during infection.

Anatomy & Physiology

What NSAID is commonly used for pain relief of lameness and colic in horses?

a. aspirin b. phenylbutazone c. ibuprofen d. etodolac

Anatomy & Physiology