Aves originated from reptiles. Which of the following is not an advancement of birds over reptiles?
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a
Homeothermy
b
Complete double circulation
c
Insulated body
d
Internal fertilisation
answer is D.
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Detailed Solution
Internal fertilisation is exhibited by both reptiles and birds.Reptiles are cold blooded (poikilothermy). They exhibit incomplete double circulation. They are without insulation.