Answer:
Here let me help you, DNA influences physical traits by changing how you look, sound, and function. Your parents transfer their genes into you which means you are left with characteristics of there body, such as having your father's nose. Hope this helped.
Explanation:
Systolic pressure is when the ventricles contract.
Answer:
organ systems
Explanation:
cells combine to form tissues, tissues combine to form organs, and organs combine to form organ systems such as the digestive system.
