2 Answers

David Rutten · Answer 1 · 2018-09-17T20:24:21+0000

You need your circulatory system because it pumps around blood and blood carries vital ingredients for your body like oxgygen and nutrients.

Luke Kroon · Answer 2 · 2018-09-22T18:17:52+0000

All cells in the body need to have oxygen and nutrients, and they need their wastes removed. These are the main roles of the circulatory system. The heart, blood and blood vessels work together to service the cells of the body.
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