John Watson offered a live, white rat to Little Albert and then made a loud noise behind his head by striking a steel bar with a hammer. The white rat served as the in his study.

Which of the following statements accurately defines epidermis? a. a thick protein fiber composed of the protein collagen b. hard, dense bone tissue found on the outer surface of a bone c. single layer of epithelial cells and the underlying basal lamina d. outer, protective layer of the skin composed of stratified squamous keratinized epithelial tissue