Question

Urinary bladder is absent in
(a) reptiles (b) aves
(c) amphibians (d) mammals

Answer 1

Answer:

urinary bladder is absent in reptiles and also in most of the birds.

Answer 2

(a) Urinary Bladder is Absent in Reptiles.

Explanation:

    (a) Urinary bladder is absent in reptiles.

1. In certain reptiles, a midventral divider in the cloaca may open into a urinary bladder, however not all.
2. It is available in all turtles and tortoises just as most reptiles, however is inadequate in the screen reptile, the legless reptiles. It is missing in the snakes, gators, and crocodiles.  
3. Bladders are missing in crocodilians, winds, a few reptiles, and most flying creatures, in light of the fact that the pee of these is semisolid, comprising for the most part of uric corrosive.
4. In well evolved creatures the bladder is shaped from part of the allantois and from the urodeum (a subdivision of the cloaca).  
5. Urine  is made in the kidneys and goes down two cylinders called ureters to the bladder.
6. The bladder stores uric acid , permitting uric acid  to be inconsistent and controlled.