10happymonkeys 10happymonkeys

20-03-2015
Biology

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What word BEST describes the beating of the heart and the circulation of blood?

- Voluntary

- Intermittent

- Involuntary

- Infrequent

Respuesta :

McSwagPants McSwagPants

20-03-2015

The heart beating and the circulation of blood is "involuntary"

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