C) Caregivers redirect toddlers to help guide impulsive behavior.
Answer: In the air sacs
Explanation: Air sacs has a million tiny holes that is were oxygen transfers. Inside the air sacs oxygen moves across paper thin walls to tiny blood vessels called capillaries into your blood
The oxygen enters the bloodstream from the alveoli.
Answer:
Protein and iron build strong and flexible bones. A diet that lacks these nutrients can lead to osteoporosis.
Explanation: