An organ system is a group of organs that are made up of similar cells.

Acheetah ran 75 meters at a speed of 25 meters per second. how long was the cheetah running? 3 seconds 5 seconds 30 seconds 50 seconds

How do refracting telescopes magnify a far away image? a. by directing light beams to meet at a focal point b. by absorbing light beams’ wavelengths c. by forcing light beams to change direction d. by measuring light beams’ velocity

What is one unexpected problem associated with cell phone use? a. it causes you to misjudge distances. b. it decreases the efficacy of your peripheral vision. c. it distracts your hearing from events on the roadway. d. it makes you more susceptible to other distractions.