Which of the following is an essential fatty acid?

A. Hydrochloric acid
B. Linoleic acid
C. Butyric acid
D. Lecithin
E. Stearic acid


Answer: B

Anatomy & Physiology

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The pineal gland synthesizes which hormone?

a) melatonin b) serotonin c) dopamine d) pineal hormone

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If L = load, F = fulcrum, and E = effort, what type of lever system is described as LEF?

A) third-class lever B) second-class lever C) fourth-class lever D) first-class lever

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The first multicellular animals to develop neurons were

A) flatworms and sea urchins. B) mollusks and sea stars. C) fish and sea monkeys. D) jellyfish and sea anemones. E) segmented worms and sea horses.

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Lymph is largely composed of water that has escaped from ________

A) cytosol B) cerebrospinal fluid C) saliva D) tears E) blood

Anatomy & Physiology