The elongation of stems is stimulated by  

A.  auxin only.
B.  gibberellin only.
C.  ethylene only.
D.  auxin and gibberellin.
E.  auxin and ethylene.


D.  auxin and gibberellin.

Biology & Microbiology

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the Euryarchaeota.

Indicate whether the statement is true or false.

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Immature forms of insects generally specialize in

a. eating and growing fast. b. reproduction. c. caring for the adults. d. dispersal. e. flying.

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A cell that could not form spindle fibers could not perform ____

A. energy production B. gas exchange across the plasma membrane C. meiosis D. DNA replication E. protein synthesis

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Which of the following choices lists in correct order the structures which a sound wave must vibrate in order to be sensed?

What will be an ideal response?

Biology & Microbiology