Wavelike smooth muscle contractions that move foodstuffs through the alimentary tube
A) Peristalsis
B) Absorption
C) Digestion
D) Hydrolysis
Ans: A) Peristalsis
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Which of these would increase the tension generated in a skeletal muscle?
A. Stretching the muscle to very long lengths B. Switching off fast-glycolytic motor units and activating an equal number of slow-oxidative motor units C. Increasing the frequency of firing in alpha motor neurons innervating the muscle D. Resting the muscle for several weeks E. Increasing the amplitude of action potentials in the alpha motor neurons that innervate the muscle
The biconcave cells in blood that lack nuclei when they are mature are the
A) white blood cells. B) macrophages. C) platelets. D) red blood cells.
Startling a hamster may cause it to bite
Indicate whether the statement is true or false
Leukemia involves
A. a decrease in leukocyte production. B. a bacterial infection. C. uncontrolled production of abnormal white blood cells. D. a viral infection.