Share Discover 2- Unit 1 Reading Comprehension
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Fish have ...... to help them breathe in water.
gills
Birds lay eggs with ...... shells.
hard
Wings and ....... help birds fly.
feathers
......... have wet skin.
Amphabians
People are ................
mammals.
Mammals don't lay
eggs.
Amphibians have .,........ to help them walk and jump on land.
legs
Fish have ......... and tails to help them swim.
fins
