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Question

Is cloaca present in chondrichthyes?


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Solution

Cloaca:

  1. Cloaca is present in Chondrichthyes.
  2. Chondrichthyes represent cartilaginous fish like sharks, rays, and skates.
  3. They have two pairs of fins with cartilaginous fin rays, have 5-7 pairs of gills
  4. Cloaca is a common orifice for the opening of digestive, urinary, reproductive, and genital tracts.
  5. It is present in reptiles, birds, amphibians, and a few mammals.
  6. Both urine and feces are excreted through the cloaca in contrast to higher mammals which have two or three orifices.

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