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Diversity In Living Organisms — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceDiversity In Living Organisms1 Mark
Question

Palcoid scales are present in:

  1. Anabas.
  2. Scoliodon.
  3. Lizard.
  4. Crorodile.
✓

Answer

  1. Scoliodon.

Explanation:

It is marine animal with streamlined body and have cartilaginous endoskeleton. The skin is tough, containing minute placoid scales.

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