The leading edge of a cold air mass that overtakes a region formerly ccupied by a warm air mass is called a(n) a. warm front b. stationary front c. cold front d. occluded front

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