Does hereditary or the environment have more influence over an individual's level of intelligence? justify your response.

Responses may vary but should include some or all of the following information:  While it is true that heredity has a great effect on an individual's level of intelligence, research suggests that environment has the most influence of the two factors. An environment of deprivation can hinder even the most genetically gifted child, while a child with modest gifts can be helped to achieve great intellectual works in a richly stimulating environment. Environmental factors have even been shown to affect intelligence scores by as much as 25 points, which is the difference between someone of average intelligence and someone who is gifted. Genetics may set the base levels of achievement, but human perseverance can affect a huge change in observed intelligence.

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