Meiosis

Your siblings are from the same parents as you but sometimes they do not look like you but it seems like it should right but sometimes they have some different genes like you might have different shaped head, different height or different hair. Some animals have more than one child some have more than one egg but people have one egg and some polar body, the polar bodies are useless but plants use them to feed the plant embryo so it is pretty much eating other so when you thing of it, it is horrible because they are eating other eggs, good thing people don't do it or it would sound horrible. After the egg it will start growing into a person and that happened to you, you where in a egg then grew inside it, it is cool how fast you grow, you actually grow faster in the egg than outside the egg.