Why do cells in the epidermis flatten out and die as they reach the surface of the skin?

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation. a. false b. true

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection