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Stevend95 Stevend95
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6 years ago
What is the hormone that promotes stem elongation and was first discovered while studying the
  growth of extremely tall and spindly rice plants?
  a. abscisic acid
  b. auxin
  c. cytokinin
  d. ethylene
  e. gibberellin

Question 2

The herbicides (weed killers) 2,4-D and 2,4,5-T are examples of synthetic:a.
   abscisic acid.
  b. auxins.
  c. cytokinins.
  d. ethylene.
  e. gibberellins.
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davomujadavomuja
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6 years ago
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Stevend95 Author
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#2
6 years ago
Makes more sense now, TY
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