Having freckles is dominant (f), and not having freckles is recessive (f). a mother has ff and a father has ff. if they have a child, which genotype will make their child not have freckles?
a. ff
b. ff
c. ff
d. ff

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?