A scientist investigates two types of cells located in different parts in the human body. Cell A contains many more mitochondria than Cell B. What is the best conclusion to make from this observation?

answer; i believe that the correct answer is (lung);

the answer is d p: cell, q: organ, r: organ system, s: tissue

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.