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Does anyone know the answer to B and C ?​

Does anyone know the answer to B and C ?​-example-1
User Andcl
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Answer:

the answer at b says that the structure of the heart at animal x is straight and inbetween the Lungs but at animal y the structure of the heart is slightly tilted to the left

and the answer at c the most efficient blood circulation is at y because the blood is able to flood accordingly and it it well transported in the aorta

User German Saprykin
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