Answer the following question: Fact 1: Skin is used for protecting the body from harmful substances. Fact 2: Skin is comprised of two layers, the epidermis and dermis. Given the two facts above, what protects the body from harmful substances?

(1). h2o. (2). brain. (3). hard outer covering. (4). fur and fat. (5). protective bony armor. (6). salt and pepper. (7). epidermis and dermis. (8). deoxyribonucleic acid.
Answer:
(7).