isaacrowan238 isaacrowan238

02-12-2020
Biology

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Ralph is looking at a blood vessel under a microscope as part of his study about the cardiovascular system. He notices that the vessel contains blood and has valves. What is the blood vessel that he is observing?

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tjsprott tjsprott

02-12-2020

Answer:

Veins

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Аноним Аноним

21-05-2021

Answer:

the person is correct its VEINS

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