BIOL 1001 FINAL EXAM WEEK 6 – QUESTION AND ANSWERS

North America is currently experiencing an unprecedented and rapid loss of species. What is believed to be the main cause? Which of the following is not a form of evidence ….in understanding the evolutionary relationship among living organisms? During cellular respiration, glucose is ….into the low-energy compounds carbon dioxide and water, while the rest of the energy release goes where? Different versions of the same genes are …..: During the 19th century, sea otters were …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. 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: You are trying to breed a heterozygote Rr rat and want to avoid homozygotes. Which of the following crosses would be your best choice?