Question

Spongilla is also called as
A. Mermaid’s Glove
B. Crown sponge
C. Freshwater sponge
D. Venus Flower Basket

Answer 1

Hint: They grow in submerged water bodies like lakes, rivers, and clean streams that are made up of siliceous spicules.

Complete answer:
Spongilla belongs to the family Spongillidae, which is found in streams, and lakes. They are also called freshwater sponges. They attach themselves to rocks and legs and help in filtering the water for various small organisms like bacteria.

Additional Information:
 -The freshwater sponges can cooperate in more extreme and variable environmental conditions.
-At the time of adverse conditions, gemmules are present for reproduction.
-The gemmules are responsible for asexual reproduction in sponges.
-They are internal buds present in sponges.
-During harsh conditions, the gemmules are formed having dormant buds and the parent sponge has died.
-During the onset of the favorable conditions, the gemmules will germinate and a new sponge is formed.
-These sponges have a thin layer of skins and are having a soft texture.
-The presence of spicules on the outer layer of the skeleton to provide protection and framework.
-The spicules are made up of silica.
-The body exchanges gases and performs excretion by the process of diffusion.
-The condition of producing both the two gametes, male and female is called hermaphroditism.

So, the correct answer is ‘Freshwater sponge'.

Note: The term sponge is derived from the Greek word sponges meaning pore bearer. Sponge belongs to the phylum Porifera. The organisms are multicellular having numerous pores, channels, and body cavities that allow water to circulate in their body. The branch of zoology which deals with the study of sponges is called spongiology.