What are the various excretory organs of earthworm,cockroach,frog

Dear Student,

• The excretory organ of cockroach is malphigian tubules.
• The excretory organ of eathworm is nephridia.
• The excretory organ of frog consists of a pair of kidneys and other accessory organs listed as below:
  • a pair of kidneys; composed of uriniferous tubules (nephrons)
  • ​​ureters arise from the kidneys and opens in cloaca
  • urinary bladder present ventral to the rectum, which also opens in cloaca.

Regards