Question

Is cloaca present in chondrichthyes?

Answer 1

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.