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More cards in this set
Card 6
Front
Why don't unicellular creatures need a circulatory system and what do they use instead?
Back
Card 7
Front
Why do we use a heart?
Back
Card 8
Front
What is an open circulatory system?
Back
Card 9
Front
What is a closed circulatory system?
Back
Card 10
Front
What are the benefits of an open circulatory system?
Back
Card 11
Front
What are the benefits of a closed circulatory system?
Back
Card 12
Front
What is a single circulatory system and what uses them?
Back
Card 13
Front
What is a double circulatory system and what uses them?
Back
Card 14
Front
What are the benefits of a double circulatory system?
Back
Card 15
Front
What type of molecule is water?
Back
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