Which of the following structures is an underground horizontal stem?
A. stolon
B. corm
C. bulb
D. rhizome
Answer: D
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Mountains produce
a. rain shadows on the windward sides. b. precipitation on the leeward sides. c. deserts on the leeward sides. d. extensive grasslands in the upper elevations on the windward sides. e. any of these.
How much of your DNA is identical to that of another person of the same sex?
A) 99.9% B) 99.5% C) 90% D) 78%
The first cells were most likely heterotrophic anaerobes because:a
they were dependent upon cyanobacteria for oxygen. b. they manufactured organic molecules and needed oxygen. c. they manufactured organic molecules and do not need oxygen. d. they utilized preformed organic molecules and needed oxygen. e. they utilized preformed organic molecules and did not need oxygen.
The synthesis/presence of cyclin is what turns on the Cdk as the Cdk is always present but it is the cyclin that is synthesized and degarded in cycles.
a. true b. false