Why aren't all the cells the same after they reproduce?

This is because all of the cells in our bodies start from a single fertilized egg. With few exceptions, all cells in a person's body have the same DNA and genes. As cells divide and grow different genes are expressed, resulting in different cell types.

hello there,

igneous rock formed from below the surface would have more crystals because

answer: because magma cools more slowly than lava

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse