Question

Whose figure is represented here?

• A. A typical sponge
• B. A typical canal system in sponge
• C. A typical digestion pathway in sponge
• D. Both B and C

Answer 1

The correct option is A A typical sponge

Sponges are animals of the phylum Porifera. They are multicellular organisms that have bodies full of pores and channels that allows water to circulate through them. Sponges have cellular level of organization and thus, do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes.

Therefore, the correct answer is option A.