Mention the function of the following:

Mention the function of the following:
(a) Ureters in frog
(b) Malpighian tubules
© Body wall in earthworm

The ureters act as urinogenital duct male frogs. In females, the ureter is separate from the oviduct and only carries urine.
(b) Excretion is performed by Malpighian tubules in cockroaches.
© The body wall of the earthworm facilitates exchange of gases