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- The accelerating spread of non-native species is a major component of anthropogenic global change, what characteristics of non-native species facilitate their ability to become established in novel environments and become invasive?Which types of species are most vulnerable to extinction?How might we reconcile warnings of an impending mass extinction that biodiversity is not systematically being lost?
- Most biologists and climatologists agree that the earth is warming, why do people disregard the evidence for global warming? What should be done to reach the public?Two islands exist in the eastern Pacific. The animal and plant life on both islands were wiped out by a freak storm at the same time. Island "A" is 100 miles off the coast of Peru; whereas island "B" is only 10 miles off Peru's coast. Island "A" is much smaller than island "B" (20 square miles as opposed to 75 square miles). Which island has a higher species richness equilibrium ? Explain why using the Theory of Island Biogeography.What is Called for the process when older communities of plant and animals are replaced by newer communities?
- Which of the following locations would NOT represent a site for primary succession? A. A forest that was recently destroyed by a fire. B. A volcanic island. C. A retreating glacier. D. All of the above represent sites of primary succession.Lets say we shift toward ocean mining and we disrupt deep ocean ecosystems, which are biodense, and have a lot of biodiversity. Do you think this information would prevent ocean mining? Why or why not?Species that are the first colonists in a habitat undergoing primary succession a. are usually the fiercest competitors. b. help maintain their habitat constant so their persistence is ensured. c. may change their habitat in a way that favors the invasion of other species. d. must first be successful secondary succession specialists.
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