The answer is a) genotype
Let me know if you need any other questions answered
Organ systems are made up of tissues which are made up of cells.
Hopefully that helps and if u need a brief explanation about that just text me.
Second-degree burn is the type of burn represented by the formation of the blisters.
Second-degree burn is a burn that affects the epidermis and the superficial part of the dermis layer (skin). Second-degree burn may be caused by sunburn, chemicals, scald injuries, flames or electricity. The burn site may appear blistered, red, wet and shiny, and may be swollen and painful.