Because most human characteristics are complex, many genes act together to determine a trait. this is called:

The correct answer is - Polygenic inheritance.

Explanation:

Polymeric inheritance takes place if a trait is influenced by two or more genes at a time. The genes can be normally high in numbers but show minute influences in the particular trait.

In humans, there are many complex gene interactions that control different characters of traits such as hair color, eye color, the height of individuals, and weight or skin color. There are many more traits that show polygenic inheritance.

Thus, the correct answer is - polygenic inheritance.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

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