Biology, 27.12.2019 19:31 skyleezarain487
Which is responsible for transporting oxygen-poor blood from the upper part of the body to the right atrium of the heart?
inferior vena cava
superior vena cava
pulmonary veins
pulmonary arteries
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There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.
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Asegment id dna that is artificially created from two or more organism through use of dna enzymes in a laboratory is called a segment of dna that is artificially created from two or more organisms through use of dna enzymes in a laboratory is called
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