If you wanted to learn more about the genetic material of plant and animal cells, where would you look?
a.
in the lysosomes
b.
in the nucleus
c.
inside the chloroplasts
d.
on the cell wall

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.