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#Question id: 3431


In the territorial behavior of the stickleback fish, the red belly of one male elicits attack from another male by functioning as

#Unit 11. Evolution and Behavior
  1. a pheromone.

  2. a sign stimulus.

  3. a fixed action pattern.

  4. a search image.


Answer:- Option(s): 3


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#Unit 1. Molecules and their Interaction Relevant to Biology

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#Unit 4. Cell Communication and Cell Signaling

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#Question id: 849

#Unit 1. Molecules and their Interaction Relevant to Biology

The rigidity of the peptide unit and the restricted set of allowed phi and psi angles limits the number of structures accessible to the unfolded form sufficiently to allow:-

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