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Biology, 15.11.2019 22:31 oliviajewelwilliams
Why is it necessary for animals to have a circulatory system?
o to move blood
o to breathe
o to maintain homeostasis
o to exchange materials with its environment
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Why is it necessary for animals to have a circulatory system?
o to move blood
o to brea...
o to move blood
o to brea...
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