Cells and Tissues

Select ONE of the following questions and submit your response. Be sure to identify which question you are answering in your submission. 

1. Explain the severity of different types of skin cancer based on the type of skin cell they originate from.

2. Explain how cells with the same DNA can create the different tissues of the body.

Tattoos work by injecting dye into the dermal layer of the skin. Why shouldn't it go into the epidermis where it will be brighter? What are the consequences of the tattoo entering into the dermal layer?