Kidney and ureter develop from

The origin of kidney and ureter in Rana tigrina is :

Urine flows into ureters from

Urine flows into ureters from

Urine flows into ureters from

The part of kidney, gateway for ureter, nerves and blood vessels is -

Assertion : Urinary bladder and ureters are lined by transitional epithelium . Reason : Ureters carry the urine to urinary bladder where it is stored temporarily .

In Frog, ureters open in