Here's why:

* Polygenic: Means "many genes."

* Inheritance: Refers to the passing of traits from parents to offspring.

Characteristics of Polygenic Traits:

* Continuous variation: Instead of distinct categories, they show a range of possibilities (e.g., height, skin color, intelligence).

* Bell-shaped distribution: When you plot the frequency of individuals with different trait values, you get a bell curve.

* Environmental influence: While genes play a role, environmental factors can also influence how the trait is expressed.

Examples of Polygenic Traits:

* Height: Many genes contribute to how tall a person grows.

* Skin color: Multiple genes determine the amount of melanin produced.

* Intelligence: A complex trait influenced by numerous genes.

* Eye color: While often simplified as a single gene trait, there's more complex inheritance involved.

Let me know if you'd like to explore any of these examples in more detail!