Like they said it's helped a lot with contacting people faster and if anything bad was to happen to anybody you can get someone to come help because you technology and phones to help with that too but it's helped in a lot of ways . Hope this helps ! :)
Answer:
Explanation:
When the body senses foreign substances (called antigens), the immune system works to recognize the antigens and get rid of them. B lymphocytes are triggered to make antibodies (also called immunoglobulins). These proteins lock onto specific antigens.
Answer: group of a people that share the characteristics, features, and/or traits.
Main reason I think is adrenaline.. gives you the strength to run from a traumatic event. fight or flight response. hope it helps
The p wave represents atrial contraction
