Frogs differ from other land vertebrates in that _____
a. the circulatory system does not play a role in respiration
b. lungs take in oxygen but do not release carbon dioxide
c. the respiratory surface is in their gills
d. they do not possess lungs
e. they take in oxygen through lungs but release carbon dioxide from gills
ANSWER: b
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Answer the question using the accompanying figure. The electrons at the lowest energy level in the neon atom
depicted are found in which orbital?
a. 1s b. 2s c. 2px d. 2py e. 2pz
Vinblastine, a chemotherapeutic drug used to treat breast and testicular cancers, interferes with the
assembly of microtubules. Speculate how this drug works to inhibit cancer cell growth.
a. Vinblastine inhibits transition from G1 to S. b. Vinblastine inhibits transition from S to mitosis. c. Vinblastine inhibits cytokinesis. d. Vinblastine disrupts mitotic spindle formation and consequently mitosis. e. Vinblastine inhibits cyclin production.
Sensory pathways of smell and taste
a. begin with chemoreceptors b. end up in the cerebral cortex. c. reach the limbic system. d. are integrated with stored memories. e. include all of these.
During development, after an injury, or to compensate for normal wear and tear, many cells in the body release hormone-like molecules called ________
Fill in the blank(s) with correct word