What do animals use to get oxygen to every cell? O lungs
O red blood cells
osmosis
all of the above

What is the difference between the idea of stare decisis and something being constitutional?

Which georgia shipyard produced 88 liberty ships?

Which of the following  bestillustrates a negative reinforcer?               a.  copland gives up candy to stave off chronic acid indigestion.    b.  nancy learns that she prefers chocolate over vanilla.    c.  carmine changes his major to english lit after failing a math exam.    d.  on a hot day, lindberg always drinks lemonade.