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Science Grade 4 Test 5

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Across
3
A bird is kept in the air by ?
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An eight legged arthropod
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A dead-leaf butterfly disguising itself as a leaf is an example of ?
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An alligator belongs to this class of vertebrates
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The relationship between a clownfish and a sea anemone is best described as a ? relationship
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An eagle is an example of this type of bird
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Most insects go through this type of metamorphosis
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A nymph will do this several times before becoming an adult
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Most invertebrates have an outside skeleton are called?
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A lobster belongs to this class of invertebrates
Down
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A bird's ear is located ? it's head
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A penguin belongs to which class of vertebrates
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The largest group of arthropods
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A whales breathes with what?
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Fish, amphibians, and reptiles are an example of what kind of animals. These also rely solely on INSTINCTS when it's born
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Fish and birds were designed with what kind of bodies
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A layer of this trapped near the bird's skin insulates it, keeping it warm