biological diversity (4) Communities have attempted to control the size of mosquito populations to prevent the 31. spread of certain diseases such as malaria and encephalitis. Which control method is most likely to cause the least ecological damage? draining the swamps where mosquitoes breed (1) spraying swamps with chemical pesticides to kill mosquitoes (2) spraying oil over swamps to suffocate mosquito larvae (3) increasing populations of native fish that feed on mosquito larvae in the swamps (4) Which animal has modified ecosystems more than any other animal and has had the 32. greatest negative impact on world ecosystems? gypsy moth (1) zebra mussel (2) (3) shark (4) In a forest community, a shelf fungus and a slug live on the side of a decaying tree trunk. 36. The fungus digests and absorbs materials from the tree, while the slug eats algae growing on the outside of the trunk. These organisms do not compete with one another because they occupy the same habitat, but different niches (1) the same niche, but different habitats (2) the same niche and the same habitat (3) different habitats and different niches (4) The map below shows the movement of some air pollution across part of the United States. 33. Which statement is a correct inference that can be drawn from this information? Illinois produces more air pollution than the other states shown. (1) The air pollution problem in Baltimore is increased by the addition of pollution from (2) other areas. There are no air pollution problems in southern states. (3) The air pollution problems in Virginia clear up quickly as the air moves toward the sea. (4) The graph below shows the growth of two populations of paramecia grown in the same 38. culture dish for 14 days. Which ecological concept is best represented by the graph? recycling (1) equilibrium (2) competition (3) decomposition (4)
(4) biological diversity 31. Communities have attempted to control the size of mosquito populations to prevent the spread of certain diseases such as malaria and encephalitis. Which control method is most likely to cause the least ecological damage? (1) draining the swamps where mosquitoes breed (2) spraying swamps with chemical pesticides to kill mosquitoes (3) spraying oil over swamps to suffocate mosquito larvae (4) increasing populations of native fish that feed on mosquito larvae in the swamps 32. Which animal has modified ecosystems more than any other animal and has had the greatest negative impact on world ecosystems? (1) gypsy moth (2) zebra mussel (3) (4) shark 36. In a forest community, a shelf fungus and a slug live on the side of a decaying tree trunk. The fungus digests and absorbs materials from the tree, while the slug eats algae growing on the outside of the trunk. These organisms do not compete with one another because they occupy (1) the same habitat, but different niches (2) the same niche, but different habitats (3) the same niche and the same habitat (4) different habitats and different niches 33. The map below shows the movement of some air pollution across part of the United States. Which statement is a correct inference that can be drawn from this information? (1) Illinois produces more air pollution than the other states shown. (2) The air pollution problem in Baltimore is increased by the addition of pollution from other areas. (3) There are no air pollution problems in southern states. (4) The air pollution problems in Virginia clear up quickly as the air moves toward the sea. 38. The graph below shows the growth of two populations of paramecia grown in the same culture dish for 14 days. Which ecological concept is best represented by the graph? (1) recycling (2) equilibrium (3) competition (4) decomposition
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