Q: What layer covers the bones that make them look tough, shiny, and white?


Read this paragraph and choose the correct option from the provided answers:

Bones look tough, shiny, and white because they are covered by a layer called the periosteum . Many bones also contain a soft connective tissue called bone marrow in the pores of the spongy bone. Bone marrow is where blood cells are made.

 Choices:

- epithelium

- cuticle

- epidermis

- periosteum


A:
periosteum