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.
Both answers are to either have your license suspended or revoked. You could also get points taken off you license if it’s your first offense.
Answer:
Could either be D or B but personally I think it is B
10% of amerixans 65 or older are affected by dimentia
Answer:
It protects the victim from any possible further harm.
Explanation:
The person doing the first aid can now check if there's anything else that the victim could be hurt by, check to see any dangers, etc.