1) Birds have _____ muscles a) Smooth b) Hard c) Flight d) Webbed 2) Feathers halp the birds to a) Run b) Fly c) Jump d) Swim 3) Ducks have  a) Padded feet b) Flippers c) Webbed feet d) Fins 4) A bat is a flying a) Bird b) Mammal c) Insect d) Reptile 5) _____ feathers help to keep a bird's body warm a) Wings b) Tail c) Down d) Flight 6) Hollow bones of birds are filled with___ a) Water b) Air c) Bone marrow d) Dust 7) Insects have pair of___ at the end of legs a) Claws b) Wings c) Feet d) Fins

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