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frez [133]
3 years ago
12

PLEASE HELP ASAP 

Biology
2 answers:
telo118 [61]3 years ago
8 0
All humans have C Double Loop Circulatory Systems.
hichkok12 [17]3 years ago
3 0
Well its a "closed" circulatory system, although this isn't the answer you wanted its a lil something for ya 

your answer would be c. double loop. 

let me know if this helps!
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