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Identify the phylum from the statements given below:

  1. Body is circular in cross-section
  2. May be free living, aquatic and terrestrial or parasitic in plants and animals
  3. Bilaterally symmetrical, triploblastic and pseudocoelomate

Choose from the following:

Option: 1

Platyhelminthes


Option: 2

Aschelminthes


Option: 3

Annelida


Option: 4

Arthropoda


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 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.

Posted by

Pankaj Sanodiya

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