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NEET2003ZoologyEvolutionActual

Convergent evolution is illustrated by:

Options

  1. Arat and dog
  2. Bbacterium and protozoan
  3. Cstarfish and cuttlefish
  4. Ddogfish and whale

Correct answer

D. dogfish and whale

Step-by-step solution

Convergent evolution occurs when species occupy similar ecological niches and adapt in similar ways in response to similar selective pressures. For example, Dogfish (Pisces) and whale (mammas) have acquired aquatic character though distantly related. Rat and dog (mammals), bacterium and protozoan (unicellular), and starfish (mollusc) and cuttlefish (Echinodermata) show divergent evolution. Related Theory Sea stars do not have gills, scales, or fins. Sea stars live only in saltwater. Sea water, instead of blood, is

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