Some species might have a similar body structure because the have the same ancestors or they are living under similar conditions.
Global cooling because it habitat was too cold and also there cooled blooded and so the change in temperature severely decreased their population so they died out.
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Answer:
B
Explanation:
Tolerable Upper Intake Level is the nutrient individuals in a group of the same age can take daily in an unquantifiable amount because it has no inimical effect
