amphibians ppt blog
TRANSCRIPT
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AMPHIBIANS
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Amphibians lay eggs in the water.Amphibians are oviparous.
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Amphibians are vertebrates.
FROG’S SKELETON
SALAMANDER’S SKELETON.
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Amphibians have smooth skin.They haven’t got scales.
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Amphibians live in water and on land.
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Amphibians are cold-blooded.cold-blooded.
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Baby amphibians live and grow in water and breathe through their gills.
gills
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Adult amphibians breathe with their lungs.
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A salamander is an amphibian.
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A toad is an amphibian.
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A frog is an amphibian.
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Life Cycle of a Frog
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Metamorphosis: baby amphibians change and grow into adult
amphibians.
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1. Frogs lay lots of eggs in the water.
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They have a tail, but no legs.
2. Little tadpoles come out of the egg.
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3. Two back legs grow.
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4. Two front legs grow.
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5. The tail becomes smaller.
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6. Adult Frog comes out of the water.
The tail disappears. The frog can live on land.