Cells divide in an effort to reproduce and create more of themselves to keep their larger- encompassing species sustained.
The golf would weigh less than a gram, and the ball, if hit hard, would fly at least very far away due to the kinetic energy without any atmospheric drag.
By using ratios. You get a punnet square and then get the ratio or even the percentage.
I am not entirely sure, but i think it would be the respiratory system because plants produce oxygen after taking in carbon dioxide, and that is similar to the human respiratory system. I am not completely sure though. hope this helps!