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Which one of the following statements about certain given animals is correct?

Option: 1

Roundworms and pseudocoelomates


Option: 2

Molluscs are acoelomates


Option: 3

Insects are pseudocoelomates


Option: 4

Platyhelminthes are coelomates


Answers (1)

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Phylum Aschelminthes and Body Plan of Aschelminthes -

  • Aschelminthes are also called Nemathelminthes or Nematodes.
  • These are known as ‘roundworms’ as the cross-section of the body appears circular.
  • These are triploblastic and pseudocoelomate animals. It implies that there is pseudocoelomic fluid that acts to provide hydroskeleton.
  • These can be parasitic or free-living.
  • They show organ system level of organization.

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Roundworms are pseudocoelomates. Molluscs and insects are coelomates. Platyhelminthes are acoelomates.

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rishi.raj

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