Genes are something that gives you a plan for what you look like. The reason why people look different is because you have genes. The genes are in some stringy stuff and the stringy stuff is in the nucleus. You get your genes from your mom and dad. Inside your genes it tells your body what you're going to look like and grow like.
Leaves have cells too.
Click here to see some cells. Skin is sensitive to touch. The top surfact of your skin is just a bunch of dead cells. There are many different parts of your skin. The top layer is called the epidermis.