Evlution Of Birds , Mammals , Reptiles

Evolution of birds and mammals occurred in :

birds and mammals have

Birds and Mammals have :-

Birds differ from reptiles in

Which of the following is a connecting link between mammals and reptiles

Among mammals, the efficiency of ventilation of lungs as compared to reptiles and birds is better developed by the presence of

Assertion : Lycaenops is a mammals - like reptile. Reason : Mammal - like reptiles originated in the Permian period.

In reptiles, birds, mammals, gymnosperms and angiosperms the fertilisation is