Mya is using a three-dimensional model of an elbow to study muscles and bones. How is studying the model different from studying
a real elbow? A) The model can be life size. B) The model can be taken apart. C) The model can bend back and forth. D) The model can include different parts.
Answer: 1917, two revolutions swept through Russia, ending centuries of imperial rule and setting into motion political and social changes that would lead to the formation of the Soviet Union.
