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meriva
3 years ago
9

Which of the following is a group of cells that sends signals to control the heart rate? Atrium Pacemaker Septum Valve

Biology
2 answers:
LUCKY_DIMON [66]3 years ago
4 0
It is atrium pacemaker i think
Mashutka [201]3 years ago
3 0
Should be Pacemakers
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ANSWER: The correct answer is CAPILLARIES

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The capillaries are hairlike thinnest blood vessels, that helps to join the arteries and ventricles together. The blood in the arteries extends to the capillaries of the organs where the blood is supplied, and then moves out to from the organ via the ventricles.

The capillary starts from the part of the arteries that are very thin.

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weight 2 = (1.7 Kg x 1.5 m ) / 1.2 m

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