Plant hormones can have different effects at different concentrations. This explains how _____
A) some plants are long-day plants and others are short-day plants
B) signal transduction pathways in plants are different from those in animals
C) plant genes recognize pathogen genes
D) auxin can stimulate cell elongation in apical meristems, yet will inhibit the growth of axillary buds
E) gibberellin concentration can both induce and break dormancy
Answer: D
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An example of an invasive species is the __________
a. bald eagle b. black-footed ferret c. snail darter d. zebra mussel
In cattle, mahogany spots are dominant in males and recessive in females. This trait is
A) sex-linked. B) sex-limited. C) sex-influenced. D) sexually determined.
How would a noncarnivorous plant obtain nutrients like nitrogen and phosphorus?
A. from the rain through its leaves B. from animals through its pitcher C. from the air through its leaves D. from the sun through photosynthesis E. from the soil through its roots
What distinguishing feature characterizes aerobic and anaerobic respiration but does not play a role in fermentation pathways?
A. Oxidation-reduction reactions B. The presence of an electron transport chain C. Hydrolysis reactions D. The absence of O2