Answer:
B. Australia is isolated
Explanation:
They originated in South America and spread throughout the world, but due to competition on other continents, the other marsupials died out, while the ones on Australia lived.
Well ATP is the energy our cell creates and uses as energy. But the organelle which creates it is the Mitochondrion/Chloroplast
A I believe because the blood pressure always increases when you are stressed or something like that