Which of the following is false?
A. Melatonin makes us feel alert and awake.
B. The pineal gland is found within the diencephalon of the brain.
C. The pineal gland secretes melatonin in a cyclical fashion.
D. The pineal gland forms part of the epithalamus.
Answer: A
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Which of the following happens if body temperature rises above normal?
A) Circulation in the skin decreases. B) Sweat gland activity decreases. C) Evaporative cooling stops. D) Blood flow to the skin increases. E) The activity of melanocytes increases.
Proteins are composed of chains of ________________________________________
Fill in the blank(s) with correct word
Which bone is not a facial bone?
A. Zygomatic B. Maxilla C. Temporal D. Mandible E. Nasal
The mitral valve prevents backflow of blood from the ________ into the ________.
A. left ventricle; left atrium B. right ventricle; right atrium C. left atrium; left ventricle D. right atrium; right ventricle