Question

Best bath sponge comes from
A. Indian Ocean
B. Mediterranean Sea
C. Arabian Sea
D. Gulf of Mexico

Answer 1

Hint: We know that bath sponges belong to phylum Porifera. Members of Porifera phylum are commonly known as ‘Sponge’. They are mostly marine and likely asymmetrical animals. They are multicellular and found to have loose tissue organization. The sponges are the most primitive members of the Kingdom Animalia as proposed by RH Whittaker.

Complete answer:
The best bath sponge is commonly found in the Mediterranean sea. These sponges commonly flourish in the warm waters at a bottom of the sea in a depth of about 40m. Mediterranean hydrodynamics are driven by three layers of water masses: a surface layer, an intermediate layer, and a deep layer that sinks to the bottom; a separate bottom layer is absent. Deepwater formation and exchange rates and the processes of heat and water exchange in the Mediterranean have provided useful models for studying the mechanisms of global climate change.

The highest temperature of the Mediterranean is in the Gulf of Sidra, off the coast of Libya, where the mean temperature in August is about 88 °F (31 °C). The salinity of the Mediterranean is uniformly high all over the basin. As in all other seas and oceans, chlorides constitute more than half of the total ions present in Mediterranean water, and the proportions of all the principal salts in the water are constant.

An example of bath sponge is Euspongia. It is called a bath sponge because of its woolly texture and sponge-like fibers.

Hence, the correct answer is option (B).

Note: Some important points to remember-
- Sponges’ sexes are not separate.
- Sponges have a water transport/canal system.
- Water enters through minute pores called ‘Ostia’ into a central cavity called ‘ Spongocoel “ and from here it goes out by the osculum.
- This process of water transport helps to gather foods and respiratory exchange and removal of waste. Their body is supported by a skeleton made up of spicules/spongin fibers.