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Physics 21 Online
OpenStudy (anonymous):

Which of the following animals is most likely to have an open circulatory system? A. lizard B. bird C. dog D. crab

OpenStudy (anonymous):

crab other animals "breathe" and have lungs, so they have a closed circulatory system

OpenStudy (anonymous):

Thanks for helping me cheat on my homework <3

OpenStudy (bluescar):

XD me 2

OpenStudy (anonymous):

me 3 XD

OpenStudy (bluemiku):

me 4!! lmao XD

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