Amphibians share with reptiles all of the following features except:
A
External ear represented by tympanum
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B
External fertilisation and indirect development
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C
Ovipary
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D
Poikilothermia
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Solution
The correct option is B
External fertilisation and indirect development
Tympanum represents the ear in both amphibians and reptiles. Both these groups are oviparous (egg-laying). They are cold -blooded (poikilotherms) too. However, in amphibians, fertilisation is external, and development could be direct or indirect. On the contrary, reptiles exhibit internal fertilisation and direct development.