Why does it take a longer time for a kilogram of water than a kilogram of copper to reach the same temperature?

Since water has a higher specific heat than copper.

Explanation:

Dimensionally speaking, the specific heat of a material () is represented by:

The specific heats of water and copper are and , respectively. Let suppose that temperature change and masses of water and copper are the same. Then, a kilogram of water takes a longer time than a kilogram of copper since the first has a higher specific heat.

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multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).