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Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

Option: 1

Aschelminthes


Option: 2

Ctenophores


Option: 3

Sponges


Option: 4

Coelenterate


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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These are triploblastic and pseudocoelomate animals. It implies that there is pseudocoelomic fluid that acts to provide hydroskeleton.

Posted by

Devendra Khairwa

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