Page 61 - Primary Six Notes

 On land they use lungs while in water they use moist skin to

breathe.

 They have webbed feet for easy swimming in water.

 Their young ones called tadpole have a tail and breathe
through gills like fish.

 A newt and a salamander have tails compared to a frog and a
toad.

Key Amphibians and Reptiles

Amphibians Reptiles

They live on land as well as They live usually on land.

in water.

Their larval stage is spent in Their larval and adult stages
water and adulthood on are spent on land.

land.

They are oviparous. They are oviparous as well as

viviparous.

Fertilization is external. Fertilization is internal.

They can breathe through They breathe through lungs.

gills as well as lungs.

The heart is three- The heart is three-chambered

chambered. but the ventricle is further di-

vided through a septum.