Which group of elements makes up more than 90% of the body's mass?

A) O, Ca, H
B) Ca, C, O
C) O, C, H
D) O, H, Na
E) C, Na, K


C) O, C, H

Anatomy & Physiology

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Which of the following is an example of a mineral?

a. B12 c. D b. sunlight d. iron

Anatomy & Physiology

Which of these muscles is used during forced expiration?

A) diaphragm B) external intercostals C) internal intercostals D) scalenes E) trapezius

Anatomy & Physiology

Which neurotransmitter is released at the sympathetic chain ganglia?

A) norepinephrine B) dopamine C) acetylcholine D) endorphin E) All of the answers are correct.

Anatomy & Physiology

A molecule that has just donated electrons ________.

acted as a reducing agent acted as an oxidizing agent is now considered reduced gave electrons to the reducing agent

Anatomy & Physiology