(i)The differences are:
(a) Amphibians have moist, smooth and glandular
skin while reptiles have a scaly non-glandular, dry and keratinised skin. (1)
(b) Bones of Aves are hollow or pneumatic, while in mammals, bones do not have air cavities. (1)
(c) In gymnosperms, seeds are naked while in angiosperms, seeds are enclosed in a fruit wall.
(ii)The given animals are classified as follows: