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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. one–way valves in veins c. thin muscular walls of veins
Answers: 2
Biology, 22.06.2019 10:00, FailingstudentXD
Dna and rna share a number of similarities, but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna
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Biology, 22.06.2019 16:00, faithyholcomb
Darwin’s hypothesis about how life changes over time is now called?
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Why do you think an animal cell would not need chloroplasts? (Use the sentences)...
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