Which of the following statements is INCORRECT regarding the excretory structure and invertebrates?

Antennal glands or green glands perform the excretory function in rotifers and some annelids.

The correct answer is Option (4) - Antennal glands or green glands perform the excretory function in rotifers and some annelids.

A survey of animal kingdom presents a variety of excretory structures. In most of the invertebrates, these structures are simple tubular forms whereas vertebrates have complex tubular organs called kidneys. Protonephridia or flame cells are the excretory structures in Platyhelminthes (Flatworms, e.g., Planaria), rotifers, some annelids and the cephalochordate – Amphioxus. Nephridia are the tubular excretory structures of earthworms and other annelids. Malpighian tubules are the excretory structures of most of the insects including cockroaches. Antennal glands or green glands perform the excretory function in crustaceans like prawns.