Question

matching structures
write the correct answer in the middle column.
definition
12.26. fibrous protein found in hair, nails, and skin
12.27. fingernail or toenail
12.28. glands secreting sebum
12.29. milk - producing sebaceous glands
12.30. the layer of tissue below the epidermis
correct answer

possible answers
guis
sebaceous glands
mammary glands
keratin
dermis

Explanation:

12.26: Keratin is a fibrous protein in hair, nails, and skin.
12.27: Unguis refers to fingernail or toenail.
12.28: Sebaceous glands secrete sebum.
12.29: Mammary glands are milk - producing glands (not sebaceous, but closest in context here).
12.30: Dermis is the layer of tissue below the epidermis.

Answer:

12.26. keratin
12.27. unguis
12.28. sebaceous glands
12.29. mammary glands
12.30. dermis