It's D. Stretching opens up arteries. This makes blood more able to get through and lowers blood pressure. Stretching makes your muscles ready for an exercise. Improved circulation is just like lowering blood pressure because it opens up arteries, veins, and capillaries. D is wrong because stretching doesn't make your heart stronger. I hope this helps! :)
Answer:
A. 30:2
Explanation:
After every 30 chest compressions at a rate of 100 to 120 a minute, give 2 breaths.
Precision. the degree of exactness of a measurement. describe a way that scientists imitate the order in nature. scientific inquiry.
I don’t know they all seem like a chronic or persistent stress but from all of them I think it’s moving but goodluck if it’s wrong sorry
