The above figure represents a plant structural
feature with which of the following functions?
a. reproduction
b. gas exchange
c. water conservation
d. water transport
e. both gas exchange and water conservation
Answer: e
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Renin is released by ________ cells of the ________.
A) principal : afferent arteriole B) granular : afferent arteriole C) granular : distal tubule D) principal : distal tubule E) intercalated : afferent arteriole
During which stage do two tRNAs properly align their two amino acids so that they may be chemically attached to one another?
A. translation B. transcription C. replication D. mutation
Species A prefers a more dry habitat but grows in a wet habitat. Why might this be?
A) Species B outcompetes A in the dry habitat. B) Species A's fundamental niche is restricted to a wet habitat. C) Species A requires large amounts of moisture to grow. D) Species B prefers a wet habitat.
You found the following plants growing on campus during a field trip: a small plant with a notable absence of root hairs; a short, stubby plant with an enlarged taproot; a tall annual herb with fungal strands extending from its roots; a low-growing
plant with nodules on the roots; and a woody shrub with an extensive fibrous root system. Based on this scenario, which plant is most likely a legume with nitrogen-fixing bacteria? A) The woody shrub with the fibrous root system B) The plant with the root nodules C) The plant with the enlarged taproot D) The annual herb with the fungal-root association E) The plant with no root hairs