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#Question id: 11777


Some of the species of stalk-eyed flies are sexually dimorphic, with males having eye stalks up to twice as long as those in females. This gender difference in eye span results from selection by females on the expression of this trait in males, a process called __________.

#Section 2: Evolution
  1. Sexual competition
  2. Sexual dimorphism
  3. Sexual selection
  4. Sexual reproduction

Answer:- Option(s): 3


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