Its main purpose is to restore partial flow of oxygenated blood to the brain and heart. ♥
I think one thing you could do in order to measure your cardiovascular strength you can do a full sprint run. In order to help improve your fitness levels you can swim, jog/run, body weight exercises, and a balanced diet.
1A: Bloody diarreha
2B: A cooked hamburger
EXPLANATION: Symptoms of foodborne illnesses typical consist of non bloody or bloody diaherra, whilst for E. coli, they are generally found in the intestines of animals. Grilling almost always eliminates E. Coli on the meat's surface and on the inside while it being a greater risk in uncooked ground beef, which is used in hamburgers.
B,basic if you want this answer described to you let me know<span />
