More than a billion years ago, the continent of africa hit north america, generating enormous pressure and heat while pushing up the blue ridge mountains to a height of 30,000 feet. most of these mountains have since been worn away by wind, rain, and the growth of living organisms. the order of the rock cycle in this case is best described as a) igneous, sedimentary. b) metamorphic, igneous. c) igneous, metamorphic. d) metamorphic, sedimentary.

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

Ture or false evidence for evolution includes millions of fossils

Toorale man murder mystery < - your lab link 1. how was the toorale man found? 2. what did archaeologists learn about the burial? why is the burial important? 3. what information were the scientists able to learn from the skeleton itself? 4. why is the question of whether the injuries came from a stone or steel weapon important? how could scientists distinguish between the different types of weapons? 5. what did the carbon dating and soil testing tell scientists about toorale man? why are the dates interesting for scientists?