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#Question id: 4599


Many crustaceans (for example, lobsters, shrimp, and crayfish) use their tails to swim, but crabs have reduced tails that curl under their shells and are not used in swimming. This is an example of ________.

#11. Evolution and Behavior
  1. convergent evolution

  2. a homologous structure

  3. natural selection

  4. a vestigial trait


Answer:- Option(s): 4


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#Aptitude

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#Aptitude

Suppose a few teachers are busy in cracking filthy jokes during their leisure time in school, you are also member of that group but unable to stop them. What would you like to do to avoid it?

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#7. System Physiology – Animal

As ambient temperature increases, heat loss increases by:

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#8. Inheritance Biology

How many different trisomics could be formed in a plant with a diploid number of 12?

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#Question id: 23322

#Aptitude

The propounded of the law of single variable is

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