Respuesta :
Genetics, considering blood type and eye color are something do to with your genetics. While having a scar and speaking English is a trait. A trait is something that describes you and or a characteristic. I hope this helped.
Answer:
Genetics
Explanation:
The eye color of an individual; is usually determined through genes and structure of pigments surrounding the eye. This helps in controlling the light that gets into the eye. The eye color may change from blue to other different colors. The genetic chromes also contribute to the change of genes.
Although used to reason that a single gene determines genetic mutations, but the science has proven it wrong. Therefore, genetics can result in different changes in an individual’s life.