Which of the following is a difference between arteries and viens?
arteries carry blood and veins carry only plasma
arteries do not have valves and veins do have valves
arteries are thin and veins are thick
arteries carry blood back to the heart and veins carry blood to the heart
Answers: 2
Biology, 22.06.2019 03:50
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Biology, 22.06.2019 05:50
Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.
Answers: 2
Biology, 22.06.2019 16:30
Why do mountaineers become breathless as they reach high altitudes
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Which of the following is a difference between arteries and viens?
arteries carry blood and veins...
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