Which is the correct pathway for passage of urine in vertebrates?
- Collecting duct ? Ureter ? Bladder ? Urethra
- Renal vein ? Urethra ? Bladder ? Ureter
- Renal cortex ? Medulla ? Urinary bladder ? Urethra
- Renal pelvis ? Medulla, ? Urinary bladder ? Urethra
The Correct Option is A
Solution and Explanation
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Concepts Used:
Excretory products and their elimination
The physiological process of the elimination of metabolic waste from the body is called excretion. The excretory products comprise amino acids, carbon dioxide, urea, uric acid, water, and ammonia. Some of the Molluscs and Echinoderms excrete waste products from the body in the form of amino acids. Ammonia is the foremost excretory product in animals, it is derived from the proteins exists in the food we eat.
Excretory Products in Different Organisms:
Read More: Excretion in Human Beings