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Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? the wings are analogous structures that evolved differently and do not have a similar internal structure. the wings are homologous structures that evolved differently and do not have a similar internal structure. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. wings of bats are vestigial structures, but the wing structures of birds are not vestigial.
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Which of the following is an oxidation-reduction reaction? (pictured below)
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What element is able to combine with itself and hydrogen to form large molecules ?
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A scientist is researching Alzheimer’s disease. He is studying what type of disease?
A. Multifactor...
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