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Hoshuia Hoshuia
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6 years ago
Ivan Pavlov rang a bell whenever he fed a dog, and later the dog salivated at the sound of the bell. What term best describes this experiment?
 
  a. classical conditioning
  b. habituation
  c. operant conditioning
  d. imprinting
  e. social learning

Question 2

What extracellular plant signaling molecules can exert their effects at very low concentrations?
 
  a. hormones
  b. peptide
  c. enzymes
  d. pheromones
  e. plasmodesmata
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fayez_83fayez_83
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6 years ago
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Hoshuia Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
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Yesterday
Smart ... Thanks!
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2 hours ago
Good timing, thanks!
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