CTET 2 Math and Science 22 Dec 2021 Paper

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Question : 66 of 150

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Whales, sharks, dolphins and fish are all aquatic animals. Which of the following statements describes their respiratory system correctly?

All of them breathe through gills.
Whales and fish breathe through gills.
Sharks and dolphins breathe through lungs.
Whales and dolphins breathe through lungs.

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