57: 45
the graphic shows the anatomy of a heart
this graphic would best enhance which student's
presentation?
anatomy of the heart
superior vena cava
aorta
pulmonary artery
bianca, who is explaining how different parts of the
heart interact
right atrium
left atrium
right ventricle
lert ventricle
fatima, who is researching how exercise heart
health
fernando, who is studying medical advances relating to
the heart
taiga, who is producing a documentary about a heart
surgeon
mark this and return
save and exit

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were a wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.