Scientists call the path that electricity takes an electric circuit. Electric circuits are used to carry electricity to places where we can use it. At home, at school, in factories or anywhere that relies on electricity. The electricity is carried to where it is needed by wires.
trait. A characteristic or condition that is determined by one's genes. The color of an animal's coat and the shape of a plant's leaves are physical traits.
Blue human eye. A phenotypic trait, or simply trait, is a distinct variant of a phenotypic characteristic of an organism that may be inherited, be environmentally determined or be a combination of the two. For example, eye color is a character or abstraction of an attribute, while blue, brown and hazel are traits.