the layer on the top. the layer with the most minerals.
I am pretty sure its called the "Biological Soup theory"... I hope I helped!
Answer is thorax...
Hope it helps you...
option c is the answer
Explanation:
septum is present between the two ventricles and separates the oxygenated and deoxygenated blood. hence if it gets ruptured then the two blood will mix up. thanks
