Question

Choose the names of organisms that fall under phylum Porifera.

• A. Spongilla
• B. Sycon
• C. Euplectelea
• D. Hydra

Answer 1

Answer: (A), (B), (C)

The correct options are
A Spongilla
B Sycon
C Euplectelea

Porifera means organisms with holes. They are commonly known as sponges. Features of phylum Porifera are following.

1. Non-motile, multicellular organisms with the hard outer skeleton.
2. They have a porous body.
3. Pores on the bodies create a canal system which helps in circulation of substances.
4. Not differentiated into head and tail; don’t have a well-developed organ or organ system.
5. Mainly found in marine habitats.

Examples: Euplectelea, spongilla, sycon