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Crocodile and penguin are similar to wha...

Crocodile and penguin are similar to whale and dog fish in which one of the following features?

A

Posses a solid single stranded central nervous system

B

Lay eggs and guard them till they hatch

C

Posses bony skeleton

D

Have gill slits at some stage

Text Solution

Verified by Experts

The correct Answer is:
D
Crocodile, penguin, whale and dog fish are all chordates and have pharyngeal gill slits at some stage of life history. This is the characteristic feature of chordates.
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NCERT FINGERTIPS-ANIMAL KINGDOM-Animal Kingdom
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  2. The echinoderms, hemichordates and chordates had which of the followin...

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  5. Read the given statements and select the correct option. Statement 1...

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  6. Match column I with column II and select the correct option from the g...

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  7. Which one of the following statements is incorrect about the occurrenc...

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  8. In some chordates, the notochord is modified as the vertebral column. ...

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  9. A common characteristic of all vertebrates without exception is

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  11. Match column I with column II and select the correct option from the g...

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  12. Match the excretory organs listed under column I with the animals give...

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  13. To which classes do the following animals belong? A-Petromyzon, B-Scol...

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  14. Which of the following is/are not the characteristics of the Class Ost...

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  15. Select the correct option in respect of characteristics of each group....

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