<span>The effects of stress on the body can and is very extreme, especially on the immune system. Being in a stressful situation causes chemicals that are stress hormones to to be supplied to the body which is useful but too much can interfere with the functions of the immune system. This can cause a greater risk of tissue damage and infection but not only that it reduces the amount of white blood cells.</span>
Answer:
1st many people died and it was even contagious like the black pledge so people wear mask people had to quarantine to spread by people traveling alot.
You put this under social studies but look at the last digit of each number 0-4 is when you round down 5-9 is when you round up therefore you answer will be 30+90=120
We depend on It for food and transportation
The answer is D, they told stories and made songs