Question

Name the five classes of vertebrates.Compare any two on the basis of their

a]Covering of skin

b] Habitat

c] Chambers of heart

d]Respiratory organs

e]Reproduction

Answer 1

1) pieces - fishes " cattilage & bony"
2) amphibia - amphibians like frog
3) reptilia - reptiles like lizard & snake
4) aves -birds like ostrich & sparrow
5) mammalia -mammals like humans

comparing amphibians and mammalia
amphibians-
-they can live in both land & water
-they have two chambered heart
- lack of scale but have mucus skin
- they have either lung or gills for breathing
- they lay eggs
mammalia-
-they are teristerial mean land living
- four chambered heart
-no scale covering of epithelial tissue
have lung for breathing
- they are viviparous (except - duckbill pltypus & echidna who lays eggs) other is kangroo who gave birth to poor developed young ones

Answer 2

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