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Sunken Lesson Animals with Backbones

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Sunken Lesson Animals with Backbones. Grade 3. Fish. Live in water Most have scales and fins Use their fins to move through the water Use gills to breathe . Amphibians. Hatch from eggs laid in water When young, they look like fish and have gills like fish. They grow legs.

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Sunken Lesson Animals with Backbones

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  1. Sunken LessonAnimals with Backbones Grade 3

  2. Fish • Live in water • Most have scales and fins • Use their fins to move through the water • Use gills to breathe

  3. Amphibians • Hatch from eggs laid in water • When young, they look like fish and have gills like fish. • They grow legs. • Gills are replaced by lungs. • They can live on land when older. • They can stay underwater for a long time. • Frogs, toads, salamanders, and newts are examples.

  4. Reptiles • Have scales • Lay eggs with leathery shells • Most live all their life on land • Lay their eggs on land • Lizards, snakes, turtles, and crocodiles are examples.

  5. Birds • Have wings and beaks • Are the only animals that have feathers • Lay eggs with shells • Use their wings to fly

  6. Mammals • Have fur or hair • Give birth to live babies • Have only a few babies at a time • The female feeds the young milk from her body • The young are taken care of for a long time • Humans, dogs, horses, cows are mammals.

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