pstriciaswanson0213 pstriciaswanson0213

13-12-2020
Social Studies

contestada

1. What is the main cause of a heart attack? A. Blood flow is blocked by a blood clot B. Heart beats irregularly C. The valves in the heart don’t operate properly D. A blood clot is blocking a vessel to the brain

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roribartlett22 roribartlett22

13-12-2020

Answer:

b

Explanation:

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leahthomas17 leahthomas17

13-12-2020

Answer:

D

Explanation:

When the major blood vessels supply the heart with blood become clogged.

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