Question

Canal system is characteristic of________________.

• A. Hydra
• B. Sea anemone
• C. Sponges
• D. Sea urchin

Answer 1

The correct option is C Sponges

Poriferans are commonly known as sponges. They are multicellular organisms with cellular level of organization. They are sessile and sedentary in nature. These have an exoskeleton made up of either spongin fibers or calcareous or siliceous spicules. The body of all sponges is perforated by a large number of apertures through which water enters the body and flows through a system of crisscrossing canals collectively forming the canal system, which is a characteristic feature of Porifera.

So, the correct answer is option C.