What makes lymphatic vessels similar to the venous circuit of the cardiovascular system?
A) Both vessels operate under high pressure. B) Both vessels have valves.
C) Both vessels feed into capillary beds. D) Both vessels have a thick tunica media.
Answer: B
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Which of the following substances is absorbed into the blood capillaries of the intestinal villi?
a. amino acids b. fatty acids c. glycerol d. all of the above
A weightlifter uses muscles so the muscles exert more than 75% of their maximum
tension, This stimulates A) shrinking of skeletal muscle. B) muscle fibers developing new filaments of actin and myosin. C) an increase in slow, fatigable white fibers. D) conversion of skeletal to smooth muscle.
What are the immoveable articulators?
What will be an ideal response?
In the menstrual cycle, progesterone levels are highest during:
A) the proliferative phase. B) menses. C) the secretory phase. D) ovulation. E) both b and d