Dhaancha

Dhaancha, karraa structure hae jon ki jiu ke bhittar ke khaas organ ke bachaae hae. Dhaancha dehin ke bittar rahe sake, jaise insaan aur jaanwar me, nai to bahaar, jaise ki kekrraa, kechua aur snail. Jaanwar aur insaan me dhaancha [[haddi] ke rahe hae.