Transcript 1 - apesMCC
1 • Introduced species often become pests because they • Have a low reproductive rate • Fill only open niches • Are generalists • Have a low genetic variability • Increase biodiversity 2 • The biggest threat to biodiversity is • Habitat destruction • Invasive species • Population growth • Pollution • Climate change 3 • The sale of a large forest to a developer causing the building of roads, logging, and urban development would most likely lead to • An increase in the number of indicator species • Increased biodiversity • A net increase in available biomass • Loss of biodiversity due to habitat fragmentation • Decrease in invasive species 4 • Which of the following would prevent invasive species from being introduced and becoming established? • I inspect foreign goods before they enter the country • II allow ships to discharge their ballast water as they enter the port • III establish international treaties banning the transfer of species across borders • I only • II only • I and II only • II and III only • I and III only 5 • Which of the following international treaties bans the hunting, capturing, and selling of threatened or endangered species in 172 countries? • Endangered species act • National marine fisheries act • Convention on international trade in endangered species • National environmental policy act • Marine mammal protection act 6 • An example in which the species is no longer found anywhere on earth is • Local extinction • Biological extinction • Ecological extinction • Selective termination • Adaptive speciation 7 • Most extinction experts believe that the extent of biodiversity loss will increase over the next 50 to 100 years because of • The projected growth of the world’s human population and resource • • • • use per person Increase due to poaching and the demand for endangered species Reduced input of solar energy cooling the planet and altering the earth’s life Natural disease processes Less fragmentation of biodiverse regions 8 • The giant panda is prone to ecological and biological extinction because of all of the following reasons EXCEPT • Its low reproductive rate • It has a narrow distribution • It is a specialist • It is rare • It is a top predator 9 • DDT was a pesticide that was used universally during the 1950s and 1960s. This chemical entered the food chain and worked its way up, eventually making the eggs of predatory birds so fragile that they could not reproduce successfully. This is an example of • Adaptation • Eutrophication • Biomagnification • Fragmentation • Natural selection 10 • Sale of exotic pets and decorative plants • Habitat destruction, degradation, and fragmentation • Invasive (nonnative) species • Population growth and resource use growth • Greenhouse effect • overexploitation 11 • Logging, mining, building of roads and urban development • Habitat destruction, degradation, and fragmentation • Invasive (nonnative) species • Population growth and resource use growth • Greenhouse effect • overexploitation 12 • No natural predators, generalists, and high reproductive rate • Habitat destruction, degradation, and fragmentation • Invasive (nonnative) species • Population growth and resource use growth • Greenhouse effect • overexploitation