|EXCRETORY SYSTEM - GARDEN LIZARD
||EXCRETORY SYSTEM - PIGEON
||EXCRETORY SYSTEM - RABBIT
|1. Paired kidneys are dark red and irregular in shape. These are flattened organs.
||1. Kidneys are dark red and somewhat rectangular and flattened organs.
||1. Kidneys are dark red and bean-shaped organs.
|2. Kidneys are located in the posterior region of the abdominal cavity and attached to the dorsal wall by a fold of peritoneum.
||2. Kidneys are situated in the anterior part of the abdomen.
||2. Kidneys are located in the posterior part of the abdominal cavity.
|3. Right and left kidneys are opposite to each other.
||3. Same as in calotes.
||3. The two kidneys are distinct. The right kidney lies much ahead than the left kidney.
|4. They are attached to the dorsal muscles.
||4. They are fitted in the hollows of the pelvic girdle.
||4. Same as in calotes.
|5. They are very near to the median line kidneys are Metanephros type.
||5. They are a little away from the median line. Kidneys are Meta nephros type.
||5. They are well away from the median line. Kidneys are meta ne phros type.
|6. Each kidney has two lobes Anterior lobe is broad and posterior lobe is broad Hilus is absent.
||6. Each kidney has three lobes They are anterior, median and posterior lobes. Hilus is absent.
||6. Each kidney is a single-lobed structure. Inner side of the kidney has a concave depression is known as the 'hilus'.
|7. The two kidneys are united posteriorly forming a V-shaped structure.
||7. The two kidneys are separate and do not fuse with each other.
||7. The two kidneys are distinct.
|8. The two ureters are narrow, thin-walled ducts extending behind from the kidneys to the cloaca, where these open into the urodaeum.
||8. Same as in Calotes.
||8. The ureters open into the urinary bladder. Ureters arise from the hilus of each kidney.
|9. There is no pelvis.
||9. There is no pelvis.
||9. Each ureter is expanded in its kidney into a funnel like pelvis.
|10. In males the ureters join at its posterior end with its corresponding vas deferens and both open by a common urino-genital aperture.
||10. The ureters do not join with the vas deferens and both open separately into the cloaca.
||10. Ureters open separately into the urinary bladder.
|11. A thin walled urinary bladder opens on the ventral side of cloaca.
||11. Urinary bladder is absent.
||11. Urinary bladder is a large, median, pear, shaped, thin walled transparent sac.
|12. Urinary bladder communicates with urodaeum thrumph its ventral wall.
||12. Urinary bladder opens into the urethra or unnogenital canal.
|13. Calotes is uricotelic animal Urine consists n.ainly of uric acid.
||13. Urine consists mainly of uric acid cotelic animal.
||13. Urine consists mainly of urea - ureotelic animal.
|14. Urine is excreted in a semi solid state.
||14. Urine is excreted in a semisolid state (Bird droppinos).
||14. Urine is passed out in a fluid state.