Middle School Life Science Quiz
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BIOLOGICAL EVOLUTION: UNITY AND DIVERSITY
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A student is given embryo images from three species at the same stage (Stage 1): duck, crocodile, and butterfly. The duck and crocodile embryos share a similar body plan with a tail bud and pharyngeal pouches; the butterfly embryo looks very different and does not show these same structures. The claim is: "Duck is more closely related to crocodile than to butterfly." Since embryology provides evidence for relatedness, which statement correctly uses the embryo evidence to support the claim?
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