Page 60 - Primary Six Notes

Amphibians

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These are cold blooded vertebrates that live both in water and

on land.

Characteristics of amphibians

 They undergo external fertilization i.e. the male sheds

sperms on the eggs outside the female’s body as they are be-

ing laid in water.

 They reproduce by laying eggs

 They are cold blooded vertebrates

 They breathe through gills, lungs and their skins.

 They have no external ear lobes.

 Their eggs are usually laid in egg spawns.

 They have scaleless skin

 They have a three chambered heart