MannyRaw55
28.01.2021 •
Health
What is the main organ of the cardiovascular system?
Question 1 options:
the lungs
the heart
the spleen
the liver
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Ответ:
heart = cardio and blood vessels = vascular. since the cardiovascular system is responsible for pumping blood into the body and circulating it around, this seems to be the logical answer.
Ответ:
i think it would be they must be proven safe and effective from it.