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A garden contains 40 flowers, 30 of which are red. What is the frequency of red flowers?
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The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?
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How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures
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Biology, 22.06.2019 09:30, ylianafghgfdsnm1479
Natural resources are any materials that humans obtain from the earth to meet our wants and needs.
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A garden contains 40 flowers, 30 of which are red. What is the frequency of red flowers?...
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