Final answer:
Skin cells, which are flat and broad, function primarily to provide a protective barrier and to cover a large surface area.The correct answer is (B).
Step-by-step explanation:
The skin cells are described as flat and broad; their primary function is to cover a large surface area, thus providing a protective barrier for the body. These structural skin cells, also known as squamous cells, are arranged in tight rows and sheets, and they serve not only to protect the underlying tissues but also to prevent water loss from the body.
Moreover, the skin helps in synthesizing vitamin D, blocks harmful UV light, and plays an essential role in regulating body temperature. The underlying theme in biology is that the form of a structure is optimally suited to its function, with the anatomy of skin cells being a clear representation of this principle.
Skin cells are flat and fit tightly together to protect the body.
They form a barrier that prevents water loss and the entry of microorganisms. Skin cells also play a role in regulating body temperature and synthesizing vitamin D.