Question

sort the words according to the meanings of their shared roots. epidermis dermatitis nonaquatic dermal aquatic semiaquatic skin water

Explanation:

The root "derm -" relates to skin. "Epidermis", "dermatitis", and "dermal" have this root. The root "aqu -" relates to water. "Nonaquatic", "aquatic", and "semiaquatic" have this root.

Answer:

Skin: epidermis, dermatitis, dermal
Water: nonaquatic, aquatic, semiaquatic