Lab Exam #1 Questions and Answers

Which of the following levels of life's hierarchy is not appropriate when referring to two of life's domains, Archaea and Bacteria? - ANSWER-The organ level Darwin proposed the theory of natural selection. For the most part, natural selection acts as a filtering agent at the ___________ level of life's hierarchy. - ANSWER-Population Not all scientific discoveries are reached through the "scientific method." Which of the following would best be described as discovery science? - ANSWER-All of the above In this experiment, both dark and light colored mouse models were placed in each of the two environments (beach and inland) and predation was measured on camouflaged and non-camouflaged mice. In this experiment, what serves as the control(s)? - ANSWER-Both a and c The results of the experiment are shown in the table to the right. For this experiment, in the beach habitat, what are the non-camouflaged models? - ANSWER-Dark-colored mice on the beach Is the hypothesis that if camouflage coloration protects mice from predation, then mice with coloration that did not match their habitat would be preyed upon more heavily than the native mice in that habitat supported - ANSWER-Yes, the hypothesis is supported The reactive properties or chemical behavior of an atom mostly depend on the number of - ANSWER-the electrons in the outer electron shell of the atom Water molecules from hydrogen bonds because - ANSWER-the water molecule is polar This is the general equation for photosynthesis—the process of capturing sunlight energy and converting it to chemical energy. Which of the following are the reactants of this reaction? - ANSWER-CO2 and H2O Earth's oceans are immense. Small floating plant-like organisms called phytoplankton contribute to ocean productivity. As ocean productivity (the rate of photosynthesis) goes up, what would you predict would happen to global carbon dioxide lev - ANSWER-CO2 levels should go down What will happen as CO2 levels in the oceans increase? - ANSWER-The ocean will become more basic The formation of starch from simple sugars such as glucose involves a series of _______________ reactions. - ANSWER-dehydration