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What part of the heart actually is responsible for pumping blood
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Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?
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Biology, 22.06.2019 10:00, nyasiasaunders1234
Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. oneโway valves in veins c. thin muscular walls of veins
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Biology, 22.06.2019 10:30, ashleydaya
Which of the following terms best matches this definition: the process where humans choose the traits that will be present in the next generation through breeding. question 4 options: genetic determinism artificial selection acquired selection natural selection
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What part of the heart actually is responsible for pumping blood...
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