The ____ of the plant refers to its external form
a. morphology
b. ecology
c. anatomy
d. distribution
e. physiology
ANSWER: a
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The graph here shows the results of Jacob and Monod's first experiments with betagalactosidase and lactose in E. coli. If beta-galactosidase were unstable in the absence of lactose (one of the hypotheses they tested), what results would you expect to see?
A. the results shown in the graph B. an increase in beta-galactosidase after lactose is removed C. a decrease in beta-galactosidase after lactose is removed D. an initially high level of beta-galactosidase at the beginning of the experiment, with a steady decline over time E. None of these choices are correct.
If the boys progressed into full-blown hypothermia, this would be a failure of which regulatory system?
A. endodermic regulation B. temperature homeostasis C. ectothermic regulation D. glucose homeostasis
Which hormone plays an "anti-abscission role" in plants?
A) auxin B) ethylene C) gibberellin D) cytokinin
If a hiker picked up a mollusk on a trail in a rain forest, what class would it belong to?
A. Polyplacophora B. Cephalopoda C. Gastropoda D. Bivalvia