Identify the mismatch among the following pairs:

Consider the following features:
$(a)$ Organ system level of organisation
$(b)$ Bilateral symmetry
$(c)$ True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.

Crocodile and penguin are similar to whale and dogfish in which one of the following features?

Radial symmetry occurs in

What does the term 'Frugivorous' mean?

Differentiate between Chondrichthyes and Osteichthyes.