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Diversity In Living Organisms — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceDiversity In Living Organisms3 Marks
Question

Write down four main characters of Nematoda. Give two examples.

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Answer

  1. Bilaterally symmetrical, triploblastic, pseudocoelomate and unsegmented animals.
  2. Body is worm-like, cylindrical or flattened.
  3. Body is covered with a tough, resistant cuticle, cilia absent.
  4. Sexes are separate.

Example: Ascaris (round-worm) and Ancylostoma (hook-worm).

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