BIOL 1001 WEEK 6 FINAL EXAM - QUESTIONS AND ANSWERS

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BIOL 1001 Week 6 Final Exam Question 1 North America is currently experiencing an unprecedented and rapid loss of species. What is believed to be the main cause? Question 2Which of the following is no... t a form of evidence used in understanding the evolutionary relationship among living organisms? Question 3 During cellular respiration, glucose is metabolized into the low-energy compounds carbon dioxide and water, while the rest of the energy released goes where? Question 4 Different versions of the same genes are called: Question 5 During the 19th century, sea otters were hunted almost to the point of extinction. When the number of sea otters became very low, the ecosystem of kelp bed “forests” also declined. Scientists discovered that the sea otters were predators of sea urchins, which were, in turn, predators of the kelp. When sea otters declined, the sea urchin populations grew, destroying the kelp ecosystem and the many species that depended on it. It was then understood that sea otters were __________ in this ecosystem. Question 6 A particular Galápagos finch uses the sharp point of its beak to break open small nuts and the strength of its jaws to crack open larger nuts. When a breeding population is blown onto an island with a choice of either very small nuts or very large nuts, members of the group began to specialize, one group eating only very small or very large nuts, depending upon their beaks. Over time, two stable groups developed, each directed towards its specific niche. This is an example of: Question 7 You are trying to breed a heterozygote Rr rat and want to avoid homozygotes. Which of the following crosses would be your best choice? Question 8 Driving along a rural two-lane highway, you notice red-winged hawks perched on a tree approximately every mile or so. This pattern continues for quite a few miles. This is an example of a _______ distribution. Question 9 Gametes fuse together during: Question 10 Match each term in column 1 with its definition in column 2. Question 11 Which of the following is NOT likely to be an example of an evolutionary change in a population? Question 12 Which of the following is not a way in which fossil evidence supports the theory of common descent? The fossil record: Question 13 Choose the false statement: Question 14 Which of the following statements about the greenhouse effect is false? Question 15 In pea plants, the allele for purple flowers (P) is dominant to the allele (p) for white flowers. In a cross between a purple- flowered plant and a white-flowered plant, all 73 of the offspring plants had purple flowers. Which of the following most likely describes the cross above? Question 16 Which of the following facts is used to support the theory of evolution? Question 17 What aspect of DNA demonstrates the degree of relatedness between organisms? Choose the best answer. Question 18 The actual carrying capacity of our planet may be lower than initially calculated because: Question 19 The flexible characteristics of the cell membrane is referred to as: Question 20 Which of the following is the proper equation for cell respiration? ………………………………………C0NTINUED………………………………….. [Show More]

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