Question

Which of the following organs is missing in a pigeon?
(A)Heart
(B)Urinary bladder
(C)Stomach
(D)Ovary

Answer 1

Hint The excretory and regenerative organs of pigeon are firmly associated with one another basically, so are concentrated together under the heading urinogenital framework. Be that as it may, the two frameworks, viz., excretory and regenerative, are physiologically free,

Complete answer: In pigeons, excretory organs are a couple of kidneys. They open independently into the cloaca through two unique ureters. They don't have a urinary bladder and discharge happens through the cloaca.

Additional information: so ought to be concentrated independently as follows: 1. Urinary or Excretory Organs: The two kidneys and two ureters are present in the excretory organs of a pigeon. The urinary bladder is missing in grown-ups to lessen the bodyweight (flight transformation). Among flying creatures, ostrich just has the urinary bladder.I. Kidneys: The fundamental excretory organs of pigeon (fowls) are two, dim earthy colored, straightened, three-lobed metanephric kidneys lying posterior-dorsally in the body pit and implanted in the empty of the pelvic supports. Their ventral surface is covered by peritoneum. They are furnished with venous blood by the renal gateway veins and blood vessel blood from the renal courses. The renal corridors provide the glomeruli, while the tubules are provided both by efferent glomerular arterioles and parts of the gateway veins. A little yellowish, prolonged, and streak-like adrenal body lies joined ventrally to the foremost projection of every kidney. It is an endocrine organ.

So, the correct answer is ‘Urinary bladder’.

Note: Every kidney comprises masses of various firmly pressed, tangled uriniferous tubules. Flying creatures have relatively a larger number of tubules than those of vertebrates. Each uriniferous tubule has little glomerulus and a specific segment, called the circle of Henle. Circles of Henle are long. The glomerulus channels the blood and filtrate go through the long circle, where a lot of its water is reabsorbed. Subsequently, much thought pee passes down the ureter