Carole is studying a piece of stone. The picture below shows what she sees when she puts it under a microscope. What can Carole observe about her stone using the magnified image?
A.
that it is made up of parts that are too small to be seen without magnification
B.
how old the stone is, where it came from, and what kind of stone it is
C.
that it is made up of living cells that too small to be seen without magnification
D.
all of these

The mission provided scientists with the first data on the behavior of a living organism in the space environment. Although the time between Sputniks 1 and 2 was only 32 days, the plan to launch a dog was planned more than a year in advance.

It contained several compartments for radio transmitters, a telemetry system, a programming unit, a regeneration and temperature control system for the cabin, and scientific instruments. A separate sealed cabin contained the experimental dog Laika.PS 2 had the primary goal to launch a living animal into orbit, but recovery was not planned. The PS-2 satellite consisted of three units mounted in a conical frame, with a total mass of 508 kg. On top was an experiment container, which carried instruments to measure solar x-ray and far ultraviolet radiation