Which of the following lists contains only trace elements?

A) sulfur, chlorine, oxygen
B) selenium, hydrogen, calcium
C) boron, oxygen, carbon
D) silicon, fluorine,
E) cobalt, calcium, sodium


Answer: D

Anatomy & Physiology

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Which component of the communication process refers to the route in which the message is sent?

a. sender c. feedback b. channel d. receiver

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Which organ is NOT found in the thoracic cavity?

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Which organ or structure is clearly visible in a 4-week-old embryo?

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