Which of these shows the level of complexity, from simplest to most complex? a. organism - organs - organ systems b. organs - organ systems - organism c. organ systems - organism - organs d. organs - organism - organ systems

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