Which animal breathes through gills when it is young, but breathes through lungs as an adult?
A
Prawn
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B
Frog
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C
Viper
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D
Lizard
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Solution
The correct option is B Frog Most amphibians start their journey as water-dwelling animals. Similarly, frogs when they are young (tadpoles) they breathe through gills, but as they become adult they develop lungs for breathing and become land-dwelling animals.