which was most likely an effect on society that resulted from Improvements in blood handling during world war 1 and world was 2

Which system revise and send electrical signals throughout the body

Y’all i need answers plss people are saying me and my brother look alike although we’re two different ages. one year apart i’m a girl, btw i’m thinking we could be fraternal twins idk my parents and my friends think we look alike

Building glycogen from glucose molecules is an example of what