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One of the first birds appeared in the period of the mesozoic era.
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What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound
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Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm
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Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic
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One of the first birds appeared in the period of the mesozoic era....
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