Question

which layer of the epidermis is only present in thick skin and consists of a thin band of flat, dead keratinocytes just below the stratum corneum?

Explanation:

The stratum lucidum is a thin, clear layer of dead skin cells found only in thick skin (e.g., on the palms of the hands and soles of the feet). It is located just below the stratum corneum.

Answer:

Stratum lucidum