Amphibians ppt blog

Post on 10-Jul-2015

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Transcript of Amphibians ppt blog

AMPHIBIANS

Amphibians lay eggs in the water.Amphibians are oviparous.

Amphibians are vertebrates.

FROG’S SKELETON

SALAMANDER’S SKELETON.

Amphibians have smooth skin.They haven’t got scales.

Amphibians live in water and on land.

Amphibians are cold-blooded.cold-blooded.

Baby amphibians live and grow in water and breathe through their gills.

gills

Adult amphibians breathe with their lungs.

A salamander is an amphibian.

A toad is an amphibian.

A frog is an amphibian.

Life Cycle of a Frog

Metamorphosis: baby amphibians change and grow into adult

amphibians.

1. Frogs lay lots of eggs in the water.

They have a tail, but no legs.

2. Little tadpoles come out of the egg.

3. Two back legs grow.

4. Two front legs grow.

5. The tail becomes smaller.

6. Adult Frog comes out of the water.

The tail disappears. The frog can live on land.