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Animal Kingdom

Question
CBSEENBI11025602
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Which one of the following matching pairs is incorrect?

  • Mollusca - Pseudocoel

  • Cnidaria - Nematocyst

  • Annelida - Chloragogen cells

  • Echinodermata - Water vascular system 

Solution

A.

Mollusca - Pseudocoel

Molluscs are coelomate animals. In such animals, body cavity is lined by mesoderm. Whereas, in some animals body cavity is not lined by mesoderm, instead, the mesoderm is persent as scattered pouches in between the ectoderm and endoderm. Such animals are called pseudocoelomates, e.g. Aschelminthes.

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