Urinary bladder is present in embryonic _____?

Urinary bladder is present in embryonic _____?

پیشاب مثانے برانن _____ میں موجود ہے؟
Explanation
  • Birds develop a urinary bladder during embryonic stages, but it is usually absent in adults.
  • Snakes lack a urinary bladder entirely, as they excrete nitrogenous waste mainly in solid or semi-solid form.