The reason why Stalin pushed so hard for the US and Britain to open a second front against Germany was because Russia was bearing the burden of Germany's advance all by itself, and was suffering a great deal of losses in the process.
The control unit for an artificial heart was invented by Otis Frank Boykin.
He reached out to Martin Luther and organized a boycott.
Classical Greek sculpture were characterized by the portrayal of idealized, lifelike bodies. Characters were very symmetrical and almost perfect versions of human beings, that almost seem real.
I would go with A, cell wall. animals have a cell membrane but no cell wall
