Bruce has colorectal cancer that has spread to his lymphatic system. He is given a drug
that is an angiogenesis inhibitor. The drug works by
A) halting cell division only in tumor cells.
B) cutting off the supply of ATP to cancer cells.
C) starving tumors by cutting off their blood supplies.
D) stimulating new blood vessels to serve tissue damaged by the cancer.
C
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In an isotonic contraction, the muscle ________
A) does not change length, but increases in tension B) changes in length and moves the "load" C) never converts pyruvate to lactic acid D) rapidly resynthesizes ATP
The portion of the brain that regulates body temperature is the
A. cerebral cortex. B. hypothalamus. C. medulla oblongata. D. pons. E. hypophysis.
The superior mesenteric ganglion receives preganglionic sympathetic neurons from the ________ segments of the spinal cord.
A. T10-T12 B. T7-T9 C. T2-T6 D. T5-T9 E. T1-T4
Macrophages are cells specialized for
A. carrying gases. B. secretion. C. support. D. absorption. E. phagocytosis