What was the purpose of project mercury?
a.
to land on and explore the moon
b.
to orbit, rendezvous, and dock spacecraft
c.
to see if a man could survive in outer space and reenter the earth's atmosphere
d.
to test the effects of prolonged spaceflight on the human body

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.