What type of a trait results in the large variation in shoe size among humans?

Is a quantitative trait.

A quantitative trait is a phenotype that can be measured and depends on the cumulative actions of many genes and the environment.
These traits are very variable among individuals, there is a range of phenotypes with continuous distribution. For examples: height, weight and shoe size.

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Only algae, oak trees, and bermuda grass produce atp by photosynthesis i am almost positive