Which of the following is true for all amphibians?

All have tails.

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Alimentary canal and urinary and reproductive tracts open into different chambers to the exterior.

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Heart is three-chambered with two ventricles.

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Excretion is carried out by kidneys

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Solution

The correct option is D Excretion is carried out by kidneys

Tails is not present in all amphibians, e.g. class Anura is without tail. Bufo (Toad), Rana (Frog)

Excretion occurs by mesonephric kidneys in Amphibians

In amphibians alimentary canal, urinary and reproduction tract open into common chamber called cloaca

Heart is three-chambered in amphibians with two auricles and one ventricle

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