BIO 182 Test Questions with Correct Answers

Since the brown tree snake is a keystone species in Guam, it must also be a keystone species in Australia? True or False - Answer-False Native predators of birds in Guam likely decreased in abundance after brown tree snakes arrived. True or False - Answer-True If birds in Guam usually disperse seeds, brown tree snakes likely had a negative indirect effect on plants? True or False - Answer-True Since more prey and fewer predators occur in Guam than in Australia, the density of brown tree snakes in Guam likely exceeds the density in Australia? True or False - Answer-True If some species of the now extinct lizards used to eat birds, brown tree snakes had a positive direct effect and a negative indirect effect on birds? True or False? - AnswerFalse Burning more coal would likely increase the total amount of methane trapped as ice throughout the globe? True or False? - Answer-False If global warming causes methane to escape from ice, warming will accelerate through positive feedback. True or False? - Answer-True Some of the carbon dioxide that results from the reaction of methane and water will end up in the tissues of plants. True or False? - Answer-True If marine bacteria use methane to grow and reproduce, melting of the methane reserves in the ocean would reduce the carrying capacity of these bacteria. True or False? -