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Which types of scales are found on the s...

Which types of scales are found on the skin of cartilaginous fishes?

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The correct Answer is:
Placoid scales
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ALLEN-ANIMAL KINGDOM-Exercise
  1. Which group of chordates posses sucking and circular mouth without jaw...

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  2. In which class of fishes mouth is located ventrally?

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  3. Which types of scales are found on the skin of cartilaginous fishes?

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  4. In which sub-phylum Notochord extends from head to tail region and per...

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  5. The teeth in cartilaginous fishes are formed due to modification of wh...

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  6. What is the name of structure that prevents the bony fishes from sinki...

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  7. Why cartilaginous fishes have to swim constantly?

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  8. Which fish has an electric organ?

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  9. Most poisonous fish is

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  10. The animals which do not have a steady body temperature are

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  11. Organisms that can regulate their body temperature and remain constant...

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  12. How many pairs of gills are present in bony fishes?

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  13. Name the cap which covers the gills in fishes:

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  14. Which structure represents ear in amphibians and reptiles?

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  15. In which class of vertebrates 3-chambered heart is found?

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  16. The cloaca in frog is a common chamber for the urinary tract, reprodu...

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  17. Which class of vertebrates possesses dry and cornified skin with epide...

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  18. In which reptiles 4-chambered heart is present?

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  19. Snakes and lizards shed their scales as skin cast it is

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  20. The presence of feathers is characteristic of which class?

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