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Most living things need oxygen to survive. these two body systems bring oxygen into your body and then move to all your body parts. what are these two body systems?

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Round peas are dominant to wrinkled. what would you cross a round pea with to determine if it were heterozygous or homozygous dominant? why? ?

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What are the formed elements (cell or parts of cell) in blood and what are their functions ?

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Identify the composition of oceanic and continental crystal rocks. in a model of earth’s interior, where would these rocks appear?

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Development has provided electrically for less money but what may be considered a cause of nuclear power

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