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Question
Which one of the following phylum is characterized by the absence of a true coelom?
Which one of the following phylum is characterized by the absence of a true coelom?
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Solution
The correct option is D Nematoda
Coelomate animals, true coelom animals have a fluid-filled body cavity, called as coelom as it lined with mesoderm layer. But if the fluid filled the cavity is not lined with mesoderm layer called as pseudocoelome which is the key characteristic of the nematodes. Hence, option D is correct.
Coelomate animals, true coelom animals have a fluid-filled body cavity, called as coelom as it lined with mesoderm layer. But if the fluid filled the cavity is not lined with mesoderm layer called as pseudocoelome which is the key characteristic of the nematodes. Hence, option D is correct.
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