kimberlydior95 kimberlydior95

25-09-2018
Health

contestada

The valves in the heart open and close to move blood in _______ between heart chambers.

A. three directions
B. two directions
C. one direction
D. four directions

Respuesta :

catman80906 catman80906

25-09-2018

The answer is D) Four

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Аноним Аноним

25-09-2018

the best answer would be D)

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