Which trait is inherited

hair length
scars
freckles
physical fitness

pick one

Hair length

Of the traits listed, hair length is the trait that is primarily inherited.

Out of the options you provided (hair length, scars, freckles, physical fitness), the trait that is typically inherited is hair length.

Explanation:
Inheritance is the passing down of genetic traits from parents to their offspring. While all of the traits mentioned can have genetic components, hair length is primarily influenced by genetics. The genes inherited from one's parents play a major role in determining the characteristics of an individual's hair, such as its length, texture, and thickness. Therefore, if someone's parents have long hair, it is more likely that their child will also have long hair, as they have inherited the genetic predisposition for it.

It is important to note that other factors like environmental influences and personal care also contribute to hair length, but genetics still play a fundamental role in determining this trait.