List features of class aves'

List features of mammals

Write features of class reptilia.

Frogs, Salamanders, Tortoise and Crocodiles are seen in both water and land. But they are classified into two different classes ofthe phylum Vertebrata. Evaluate this classification comparing salient features of each class.

Descibe some features of catalysis by zeolites.

What are the characteristic features of Euglenoids?

Write the salient features of phylum Nemathelminthes.