2 lowercase letters means that the recessive gene is visible, so it should be red feathers
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
Here is your Answer. But is there options?
Answer:
C. the cells in these 2 areas have different functions
