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erma4kov [3.2K]
3 years ago
14

The top region of the heart where all blood vessels arise

Biology
1 answer:
katrin [286]3 years ago
4 0
Wait I’m lost is this a question?
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PLEASE I REALLY NEED YOUR HELP I´LL GIVE BRAINLIEST
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Answer:

D the train

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The train is safe very fast and was the first built

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