Caffeine and unsweetened chocolate both taste bitter, as they are

A. alkaloids.
B. amino acids.
C. acids.
D. carbohydrates.
E. ions of heavy molecular weight.


Answer: A

Anatomy & Physiology

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The spinal cord begins at the ________.

A. cerebellum B. conus medullaris C. 1st cervical vertebrae D. medulla oblongata E. foramen magnum

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The muscle beneath the dermis of the skin of the scrotum is the

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Which muscle of the pelvic floor acts as a sphincter in the vagina and anal canal?

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