natileighrodgers
natileighrodgers
13-10-2021
Biology
contestada
what is a closed circulatory system
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vivipinedax11
vivipinedax11
13-10-2021
Sorry if this is wrong but a closed circulatory system is blood that is contained inside blood vessels, circulating unidirectionally (in one direction) from the heart around the systemic circulatory route, then returning to the heart again.
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