Seudónimo Seudónimo
  • 17-05-2016
  • Health
contestada

In what ways is the heart suited to its job of pumping blood around the body?

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bethanypearce0
bethanypearce0 bethanypearce0
  • 18-05-2016
The heart is a large muscle with valves designed to open and close, allowing large amounts of blood to pass at a time
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