1. Tardigrade
  2. Question
  3. Biology
  4. Read the following matches about chordates and it's characteristics. I. Petromyzon- belongs to Cyclostomata and are endoparasites on some fishes. II. Scoliodon- a Chondrichthyes in which teeth are modified placoid scales. III. Hippocampus- a cartilaginous aquarium fish known as a sea horse. IV. Ichthyophis is a limbless viviparous amphibian with direct development. Select the incorrect statements?

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Q. Read the following matches about chordates and it's characteristics.
I. Petromyzon- belongs to Cyclostomata and are endoparasites on some fishes.
II. Scoliodon- a Chondrichthyes in which teeth are modified placoid scales.
III. Hippocampus- a cartilaginous aquarium fish known as a sea horse.
IV. Ichthyophis is a limbless viviparous amphibian with direct development.
Select the incorrect statements?

NTA AbhyasNTA Abhyas 2020Animal Kingdom

Solution:

Petromyzon- belongs to cyclostomata and are ectoparasites on some fishes. Hippocampus- a bony non-aquarium fish known as sea horse. Ichthyophis is a limbless oviparous amphibian with indirect development. Scoliodon- a chondrichthyes in which teeth are modified placoid scales.