Question : (a)Rearrange the following in an ascending order of evolutionary tree: Reptiles. salamander, lobe fins and frogs (b) Name two reproductive characters that probably make reptiles mare successful than amphibians.

Question : (a)Rearrange the following in an ascending order of evoluti

1.	Question : (a)Rearrange the following in an ascending order of evolutionary tree: Reptiles. salamander, lobe fins and frogs (b) Name two reproductive characters that probably make reptiles mare successful than amphibians.
Answer» Solution :(a) Lobe Fins lt Frogs lt Salamander lt Reptiles (B) Reptiles are more successful than amphibians because (i) They show internal FERTILIZATION (II)Their eggs are thick-shelled which do not dry up in sun like those ofamphibians (i) Presence of amnion (EMBRYONIC MEMBRANE).