The best answer for the blood vessels' valves would be these are veins that would then help in preventing the back flow of blood because the walls have small muscle to pump the blood back to the heart.Hope this is the answer.
Perfect vision is not a long term effect
1. Reselling for money
2. Abusing the dosage
Adolescence is an exciting and confusing time for a young person. Their bodies are going through major changes which affect mood and personality. They are transitioning from child into adult which can be very scary and intimidating because of the added responsibility and expectations from parents, teachers, and peers. They are becoming their own person. So it makes sense that...
1) D. a sense of security and calmness is NOT a common feeling.
2) A. Freedom increases, but so does responsibility
3) B. Teaches workplace skills and etiquette
4) TRUE
