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Upper Elementary Science - I
2.29 Classifying Vertebrates
: Humans are ____________.
: Fish breathe through ______.
: Fish, amphibians, and reptiles are all ________ blooded.
: Which vertebrates have well developed brains?
: Vertebrates are divided into _______ classes.
: Which two vertebrates are warm blooded _________.
birds and fish
mammals and birds
amphibian and reptiles
: A vertebrate is an animal with _______.
no back bone
a back bone
: A penguin is a ___________.
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