Question

which trait is determined by both genetics and the environment?
○ eye color
○ athletic ability
○ blood type
○ a scar

Explanation:

• Eye color is mainly genetic. Blood type is determined by genetics. A scar is an environmental - caused mark (injury - related). Athletic ability: Genetics (e.g., muscle fiber type, cardiovascular traits) and environment (training, nutrition, access to sports) both play a role.

Answer:

B. athletic ability