Adisease called phenylketonuria causes mental problems, reduces skin pigmentation, and also affects the coloration of urine. what kind of effect is exhibited by the gene responsible for this disease?

Internal feedback works to maintain homeostasis when your a. heart rate decreases as your white blood cells increase b. breathing rate decreases as your red blood cells decrease c. heart rate increases as your liver is cleaning blood d. breathing rate increases as your heart rate increases