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You Are Presented with a Heart from an Unknown Organism

Question 6

Multiple Choice

You are presented with a heart from an unknown organism. Upon studying the heart, you note that it has a small node of tissue in the right atrium and that it has a single aorta leading directly from the left ventricle. Based on these observations, from what kind of organism must this heart have come from?


A) Reptile
B) Amphibian
C) Bony fish
D) Bird or mammal
E) Cartilaginous fish

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