The Miller-Urey experiment included
A. the bubble model of containment of polar molecules.
B. finding extraterrestrial organisms.
C. reconstructing the oxygen free atmosphere of early Earth.
D. None of the choices are correct.
Answer: C
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The Cretaceous is the period in which
a. mammals diversified and flourished. b. life appeared on this planet. c. the first animals with shells and skeletons appeared. d. the dinosaurs reached their peak and then became extinct. e. the first human-like apes appeared.
The deer population in many parts of the northeastern United States is perceived to be out of control. What solutions to this problem would you deem to be the most feasible? (Select and defend one or more of the solutions listed below.) a. Increasing human predation by increasing the length of hunting season . b. Lowering the birth rate of the deer by putting out feed laced with
birth-controlchemicals. c. Increasing the rate of predation by re-introducing natural predators such asbobcats and mountain lions. d. There is no absolute correct answer to this question since each choice, althoughit will impact the deer population, has its pros and cons.
Which of the following is NOT true of adult
cell cloning? a. It involves differentiated cells. b. It occurs with some frequency in nature. c. It involves rewinding the developmental clock. d. It involves an egg cell that has had its nucleus removed. e. It may involve nuclear transfer
Automated external defibrillators (AEDs)
a. check for a heartbeat. b. shock the heart if required. c. use electronic voice commands to guide bystanders in taking appropriate actions. d. are now available at many senior centers, malls, schools, and other public places. e. include all of these.