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NTA Abhyas NEET2020BotanyAnimal KingdomPractice

Chondrichthyes is characterized by

Options

  1. Aplacoid scale and terminal mouth.
  2. Bctenoid scale and terminal mouth.
  3. Cctenoid scale and ventral mouth.
  4. Dplacoid scale and ventral mouth.

Correct answer

D. placoid scale and ventral mouth.

Step-by-step solution

Chondrichthyes is a class which belongs to subphylum Vertebrata of phylum Chordata. This class comprises of cartilaginous fishes. These fishes show the presence of a ventrally located mouth. The skin of these fishes is covered by minute placoid scales. Ctenoid scales and terminal mouth is present in class Osteichthyes.

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