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Answer quick 1 min left on test and I will reward you with the following 1 thanks 5 star rating and briniest not the person who is wrong will not get these rewards!!!!

Humans have what type of Circulatory system?

A. single loop

B. double loop

C. triple loop

D. quadruple loop

2 Answers

5 votes

The answer is B. Hope this helps in some way.

0 votes
The answer is B. double loop.
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