Term definition match the correct term to the right definition elliptical galaxy a) forms a perfect sphere or an ellipse and is flattened to some degree irregular galaxy b) has a large flattened core lens galaxy c) does not have a distinct regular shape spiral galaxy d) has a central core from which curved arms spiral outward

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?