Intelligence

I took a general psychology course in undergrad and the professor had us look at intelligence this way. You are born with a potential intelligence range and the remainder of intelligence is determined by nutrition, access to education, etc. For example, two children may both be born with an IQ range of 100 to 125. One child was born to parents who did not have the means to provide the right nutrition, health care, or education so that child ended up with an IQ of 100. The other child was born to wealthy parents who made sure he had the best of everything, so that child ended up with an IQ of 125. Does that make any sense?