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IAT IISER2024BiologyAnimal Kingdom

Which one of the following statements is correct?

Options

  1. AHemichordata is not considered as a chordate sub-phylum because it possesses a water vascular system.
  2. BHemichordata is a sub-phylum under Chordata and possesses a proto-notochord called stomochord.
  3. CHemichordata is a sub-phylum under Chordata and possesses a proper notochord and gill slits like chordates.
  4. DHemichordata is not considered as a chordate sub-phylum, and possesses a proto-notochord called stomochord.

Correct answer

D. Hemichordata is not considered as a chordate sub-phylum, and possesses a proto-notochord called stomochord.

Step-by-step solution

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