Why do we need a vaccine to launch an immune response? ANSWER FAST

A. To make you sick
B. To kill the vaccine
C. To make memory cells

The world’s richest 20 percent of the population consume about what percentage of all goods and services in a given year?

When you have proper posture, your back is arched. a. true b. false

Asoccer mom is driving her 75 year old grandmother and her 9 year old daughter home after the game. the grandmother and daughter were both in the back seat and both were wearing their seat belts. a car ran a red light in front of them, causing them to t-bone that car on the passenger side. fortunately there were no serious injuries, but the grandmother did sustain several rib fractures. the mother, daughter and driver of the at-fault car were shaken up but unhurt. what are some possible reasons that the grandmother sustained rib fractures while the other victims did not?