Answer:
The way I would explain this is by using an analogy:
Think of the different parts of the brain as parts of a car. For example, wheels, transmission, battery, gas tank, etc. These things are vital for a car to work. But, by themselves, they aren't as useful. They rely on each other to make a fully functioning car. The same is true for the brain. For example, the temporal lobe by itself processes sound for our speech and hearing. This is extremely important, but what is the importance of the temporal lobe without the frontal lobe to help us process, plan, and form a personality? Each part of the brain is extremely reliant on each other to carry out the functions of being human. That is why the brain as a whole is greater than the sum of each of its parts.
Step-by-step explanation: