Which part of the syringe attaches to the needle?

What piece of information would you provide to a group of young teenage drivers to decrease their chance of suffering a "whiplash" type injury if involved in a motor vehicle collision?

A) Ensure that the head rest is properly positioned. B) Position the car's seats in a full upright position. C) Make sure the car has side door air bags. D) Properly wear seat belts with a headrest in the down position.

Carrier molecules help move substances from an area of low concentration to an area of high concentration by ____. 

A. diffusion B. osmosis C. filtration D. active transport E. passive mechanisms