The number of children the organism has
This can be explained by analyzing the two chemical equations
The equation for photosynthesis is:
6CO2+6H20--->C6H12O6+6O2
The equation for aerobic respiration is:
C6H12O6+6O2--->6CO2+6H2O
The oxygen that is produced by the photosynthesis is consumed by the organism that do aerobic respiration.
D, since it only affects the sex cell which are for forming offspring.
To oxygenate your blood cells.