1.

Write the characters of each of the following animals with the help of classification chart:Bath sponge.

Answer»

Classification:

Kingdom: Animalia

Sub-kingdom: Non-chordata

Phylum: Porifera

Characters:

  • Multicellular organisms without cell wall
  • Cellular grade organization.
  • Asymmetrical body
  • Acoelomate
Bath sponge is a marine animal. Blackish in colour and round in shape having porous body. It has spongin fibres and spicules which serve as skeleton. Bath sponges have good water-holding capacity. It is sedentary animal which is fixed to some substratum in the aquatic environment. Reproduction is by budding. It also has a good regeneration capacity.


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