A chemical derivative of adenine.  

Choose the letter of the best:
A. abscisic acid
B. auxin
C. ethylene
D. cytokinin
E. gibberellin

D. cytokinin

Biology & Microbiology

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Eyes in mammals and _____________ are examples of convergent evolution. 

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A single exposure to HPV results in infection _______ of the time

A. 10% B. 30% C. 60% D. 100%

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Shoreline communities exhibit strong zonation

Indicate whether the statement is true or false

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Which support structure uniquely originates from Pharyngeal Arch IV?

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