What makes an isotope radioactive?
A. It releases energy to become stable.
B. It releases hydrogen ions into solution.
C. It breaks down into hydrogen and electrons.
D. It has more protons than electrons.
Answer: A
Anatomy & Physiology
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Which of the following gases does endothelium release?
A. Methane B. Nitrogen C. Nitric oxide D. Oxygen
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Conscious interpretation of external stimuli
a. is sensation b. rarely occurs c. is perception d. is processed in the diencephalon e. is none of the above
Anatomy & Physiology
Which of the following is a molecule that binds to a receptor?
A) acetylcholine B) tropomyosin C) acetylcholinesterase D) all of the above
Anatomy & Physiology
The salivary glands under the tongue are called the
A) submandibular glands B) sublingual glands C) parotid glands D) submaxillary glands
Anatomy & Physiology