Answer:
In order to answer the question i need a story, picture, note, etc... to examine this sara character but you provided nothing but "What possible problems could Sara be experiencing?" Im sorry but you need to add more information about sara.
Explanation:
Answer:
Diaphragm
Explanation:
the exchange of air between the environment and the human body is a result of the rhythmic contractions of the rib cage muscles and the DIAPHRAGM. cilia Filtering dust particles out of the human respiratory system is the function of the little tiny hairs
Answer;
improve your chances of going to college
Explanation;
Physical activity helps improve academic achievement. Teachers have long suspected it. Physical activity can have an impact on cognitive skills and attitudes and academic behavior, all of which are important components of improved academic performance.
Exercise affects the brain on multiple fronts. It increases heart rate, which pumps more oxygen to the brain. Exercise stimulates the brain plasticity by stimulating growth of new connections between cells in a wide array of important cortical areas of the brain.
I believe the answer to your question would be D. I hope that answered your question, my friend. :)