Why might the functioning of the nervous, circulatory, and digestive systems serve as a good analogy for how the heating, cooling, plumbing, and electrical systems of a building interact?
Answer
A
They function the same way throughout a person’s life span.
B
They may be turned on or off, though the body functions best when they are all on.
C
They all work toward maintaining the body and its normal functioning.
D
They are features that all mammals share regardless of size.