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As the size of some animals has evolved to greater sizes, the effectiveness of their adaptations that promote exchanges with the environment have also increased. for example, in many larger organisms, evolution has favored lungs and a digestive tract with
a) more branching or folds
b) increased thickness
c) larger cells
d) decreased blood supply
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As the size of some animals has evolved to greater sizes, the effectiveness of their adaptations tha...
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