This lower limb muscle, which attaches to the calcaneus via the calcaneal tendon and plantar flexes the foot when the knee is extended, is the __________.
A. tibialis anterior
B. gastrocnemius
C. All of the aboe
B. gastrocnemius
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The fuzzy coat of carbohydrates on the outer surface of the plasma membrane that functions in cell identification is called the __________.
A. brush border B. glycocalyx C. cholesterol coat D. phospholipid bilayer E. cell-adhesion molecule
Which part of the brain exerts the most control over the autonomic nervous system?
A. The cerebral cortex B. The midbrain C. The hypothalamus D. The thalamus E. The medulla oblongata
The two biggest self-prescribed uses of melatonin are as prevention for the common cold and as a reproductive aid
a. True b. False Indicate whether the statement is true or false
Which statement is incorrect?
a. Acids can dissociate in solution to yield free hydrogen ions and anions. b. All substances that contain hydrogen are considered to be acids. c. A strong acid has a greater tendency to dissociate than a weak acid. d. The extent of dissociation for a given acid is a constant, K. e. Only free hydrogen ions contribute to the acidity of a solution.