The photo shows a series of stages in the growth of a chicken. Which three processes do the cells of an embryo in an egg perform as it changes to a chick?
Which three processes do the cells of an embryo in an egg perform as it changes to a chick?

A: They take in new genes.
B: They increase in number.
C: They increase in size
D: They take in nutrients.

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.