Please answer these 3 questions and I’ll give brainliest and all my points: What is the cardiovascular system?

What is the difference between arteries, veins, and capillaries?

What is a heart attack?

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Explanation:

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yes, post it and i can try to you out.

different routes can lead to sammy to different places, with different roads.   if you check a map, you can see the routes.   try to make connections of the places and count how many there are.   hope this : )