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

Explanation

(a) Ureters in frogs: A ureter acts as a urinogenital duct, which carries sperms along with urine in male frogs. (b) Malphigian tubules: Malphigian tubules are excretory organs in cockroaches. (c) Body wall in earthworms: In earthworms, the body wall consists of muscle layers. It helps in movement and burrowing.