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Why do fish continuously open and close ...

Why do fish continuously open and close their mouth in water? Why do the flaps on both sides of the head alternately open and close?

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NCERT TELUGU-Respiration In Organisms-Exercise
  1. Draw a neat labelled diagram of arrangement of gills in fish.

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  2. Do plants respire in the way humans do?

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  3. Why do fish continuously open and close their mouth in water? Why do t...

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  4. Mention the differences between Respiration and Breathing.

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  5. How do earthworms respire?

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  6. Identify the correct one, give reasons :The process of gaseous exchang...

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  7. Identify the correct one, give reasons : Plants respire through

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  8. Select correct answer and give reasons. Which of the following animal...

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  9. Identify the correct one, give reasons :What will happen when you blow...

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  10. Identify the correct one, give reasons : Respiratory organs of cockroa...

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  11. What is respiration ? How is it different frobreathing ?

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  12. Frogs breathe through their skin as well as their lungs. Explain.

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  13. Asif wondered how plants and animals which live under water also respi...

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  14. If you want to know about "Actions of gases in lungs". What questions ...

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  15. If you did this experiment of respiration with fruits and dry leaves, ...

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  16. Imagine the lungs and size of an elephant. Is there any relation betwe...

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  17. It is very interesting to watch fish in an aquarium. Make your own bot...

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  18. Do you find any relationship between plants and animals by their respi...

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  19. Don't we feel suffocated if we don't get air even for a short while!

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  20. What is breathing ?

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