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gladu [14]
3 years ago
9

What does the phrase "closed system' mean as it relates to the cardiovascular system? 

Health
1 answer:
timofeeve [1]3 years ago
8 0
Is one of which the blood stays in blood vessels at all times
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julia-pushkina [17]

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orthodontist

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Which of the following are common reasons that teens give for using alcohol? (Choose all that apply.)
mr_godi [17]
Hello there!

It would have to be C. Relaxation.

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Vladimir [108]

Answer: placebo

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kolezko [41]
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A seizure can be a sign of which of the following problems?
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