What causes the deficits found in children with phenylketonuria (PKU)? 1. They are unable to synthesize melanin, thyroxine and catecholamines. 2. They are unable to synthesize renin, erythropoietin and antidiuretic hormone. 3. They are unable to synthesize aldosterone, cortisol and androgens. 4. They are unable to synthesize neurotransmitters gamma aminobutyric acid (GABA) and acetylcholine.

Energy needs, in total kilocalories per day, are greater during than any other time of life. a.childhood b.infancy c.adulthood d.adolescence

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.

2. which of the following is an incorrect statement? the idealrehabilitation program isa. never changed once written.b. based on the patient's age, injury, and other factors.c. monitored periodically to remain effective.d. re-evaluated if new injuries occur.