The answer is D. A Bacterium
Answer: d. cerebrum
Explanation:
The cerebrum is the uppermost and largest portion of the brain. It consists of two cerebral hemispheres, which accounts for the two-thirds of the total weight of the brain. The left hemisphere has function in controlling the language and speech. The other one interprets the spatial and visual information from the stimuli. The cerebrum is also the thinking part of the brain it also controls the movement of the voluntary muscles.
It really depends, think of it as 2 light bulbs in each parent. if both light bulbs in both parents are switched on that means their genes that they inherited are only able to have brown eyed babies, although if just 1 of the 4 light bulbs are not on it allows the baby to have blue eyes.