
Pinna is part of external ear and it is found in mammals. Do aves and reptiles show external ear in any form?
Important Questions on Kingdom Animalia

Birds need to keep their body light to help in flying. Hence, they show presence of some organs only on one side. How their skeleton helps in reducing their weight?


Crab and snail both have a protective covering. Is it made up of the same material?

Sponge and sea star show calcareous protective material. Do they belong to the same Phylum?

Fish and snake both have scales. How do these scales differ from each other?

Lower Phyla like Arthropods and Cnidarians show metamorphosis. Is it also found in any class of Phylum Chordata?

Draw a neat labelled diagram of Sycon.
