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in Kingdom Animalia by (50.3k points)
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Write the general characters of the phylum porifera.

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  • They are aquatic, asymmetrical. 
  • They have pores all over the body. 
  • They are multicellular with cellular level of organisation. Tissues are not formed.
  • They have canal system for circulation of water. 
  • They have skeleton made of calcareous or siliceous spicules.
  • Nutrition is holozoic and digestion intracellular. 
  • Asexual reproduction by fragmentation and gemmule formation.
  • Indirect development with parenchymula and amphiblastula larvae, e.g., Sycon and Spongilla.

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