The is a muscle in the bottom of the chest that bends downward to draw air in, and bows upward to force air out of the lungs. a. diaphram b. bronchi c. trachea d. heart

cats appear to have glowing cat eyes because the back of their eyeballs includes a special reflective surface called the tapetum lucidum. this lets them see better during the night, giving them a much better vision.

its 42

i say its d?