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in Biology by (46.2k points)

The substance that triggers the fall of mature leaves and fruits from plants is due to

(a) auxin 

(b) gibberellin 

(c) abscisic acid 

(d) cytokinin

1 Answer

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The answer is (c) abscisic acid

  • Abscisic acid forms a layer of abscission. 
  • This layer disconnect the living tissue of leaf from the other parts.

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