I suck at bio please help!!
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Answers: 1
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
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Biology, 23.06.2019 03:00, Requiem3327
What 2 continents have the most obvious fit of the coastlines?
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