Question

Which one can be used as a bath sponge?
A) Cliona
B) Chalina
C) Hyalonema
D) Hippospongia

Answer 1

Hint: Sponge is a tool which is used as a cleaning purpose and is soft and porous in nature. It can absorb water and can make water based solutions.

Complete Answer:
1) Cliona is a boring sponge that destroys the shell of mollusc. It is very harmful in the oyster industry. It is sometimes yellow or orange in colour. These are mostly found in New England and adjacent to it. Their reproduction takes place both sexually and asexually.

2) Chalina is also called a finger sponge which is further used for many decorative purposes. It comes under the class Demospongiae from the phylum Porifera. It is a branched structure and looks like a honeycomb.

3) Hyalonema is also known as the glass rope sponge which is found in oceans. It is found from 10-16 meter deep from sea level. It is rounded, sometimes twisted or oval in structure that can make a tuft.

4) Hippospongia is a sea sponge used in bathing sponge. It is also known as the bath sponge of honeycombs that falls into the phylum Porifera. It is naturally dark in colour and used extensively in scientific studies. As it is porous in nature, it is also found in shallow waters.

Hence Option D: Hippospongia is the correct answer.

Note: Hippospongia has many oscules which are scattered and along the top. As it is porous, it is used throughout the world. Hippospongia is usually large in structure, yellowish brown in colour.