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BIO145 Marine Biology Lesson 15 Quiz




Question;1;of 25;Accumulation of sludge on the bottom of the ocean is responsible for;anoxic, or oxygen-lacking, conditions.;drastic changes in salinity.;deposit feeders being replaced by filter feeders.;drastic changes in temperature.;an increased number of sharks and other predators.;Question;2;of 25;The two most persistent sources of oil pollution in the marine environment are;tanker and blowout accidents.;tar balls and tanker accidents.;stormwater and river runoff and fuel from boats and planes.;urban wastes and normal operation of tankers.;blowout accidents and urban wastes.;Question;3;of 25;The most harmful oil spills in terms of large-scale damage to the marine environment are due to which of the following?;Blowout of offshore rigs;Discharge of oil during the unloading of tankers;Sinking or collision of tankers;Runoff from coastal cities;Natural seepage;Question;4;of 25;A substance that is biodegradable;evaporates very slowly.;forms tar balls or other solid residues.;can be broken down only by special chemicals.;sinks to the bottom.;can be broken down by bacteria.;Question;5;of 25;Chlorinated hydrocarbons are found most commonly in;fertilizers.;sewage.;oil.;aerosol containers.;pesticides.;Question;6;of 25;Persistent chemicals are particularly harmful to the environment because they;are toxic to plants and other autotrophs.;are not soluble in seawater.;interfere with the oxygen intake of organisms.;are toxic since they are radioactive.;accumulate in organisms that are higher in the food chain.;Question;7;of 25;Which;of the following organisms are expected to show the highest;concentration of DDT and other chlorinated hydrocarbons in their;tissues?;Filter-feeding fishes;Carnivorous fishes;Phytoplankton;Sea lions;Zooplankton;Question;8;of 25;Mercury has been directly linked to which of the following health problems in humans?;Hepatitis;Cancer;Neurological disorders and paralysis;Digestive disorders;Respiratory problems;Question;9;of 25;A threatened species is one that is;in immediate danger of extinction;at risk, but not in immediate danger of extinction;Occurs in unnaturally low numbers;at great risk since it only exists in zoos or marine parks;within a few years of disappearing forever;Question;10;of 25;Introduced species are known to be transported into a new location by way of;ocean currents.;plankton brought in by currents.;transplanted oysters.;natural migration.;young individuals brought in by currents.;Question;11;of 25;Efforts to restore kelp forests include;transplantation of sea urchins.;cutting kelp just below the surface of the water.;transplanting young kelp.;seeding with fertilizers.;growing kelp along floating rafts.;Question;12;of 25;Artificial reefs are known to;improve fishing.;increase pollution.;increase beach erosion.;bring unwanted introduced species.;change weather patterns.;Question;13;of 25;Reduced light availability for zooxanthellae is most related to which of these human induced factors?;Increased sedimentation;Thermal pollution;Increased harvesting;Acidification;Pesticides;Question;14;of 25;Which of the following is not true regarding coral bleaching?;It can be the result of increased temperatures.;Bleaching events are increasing.;Bleaching results in total loss of zooxanthellae.;Bleached corals do not grow.;Bleached corals are vulnerable to disintegration.;Question;15;of 25;The oceans are said to have been barriers of culture due to;most nations protecting their seaports.;banning of ocean-going commerce until the sixteenth century.;stiff import-export trade barriers.;belief in the western world that the earth was flat.;lack of maps.;Question;16;of 25;A group of people that are known to have completed long voyages of discovery across the ocean before the Europeans are the;Polynesians.;Native Americans.;Inuit peoples native to polar regions.;South American Indians.;Native Californian tribes.;Question;17;of 25;In terms of total volume, maritime trade is dominated by;crude oil.;fruits and vegetables.;coffee.;sugar.;pharmaceuticals.;Question;18;of 25;Salmon and killer whales provide a source of many legends and religious beliefs in the native cultures of;Australia.;Northern Europe.;South Africa.;the Caribbean.;the Pacific Northwest.;Question;19;of 25;Some unique cultures heavily influenced by the sea exist in isolated areas where the economy is still based on;tourism.;transportation.;fishing.;handicrafts.;international trade.;Question;20;of 25;Perhaps the most remarkable example of reclamation of land from the sea bottom is found in;France.;China.;Italy.;The Netherlands.;Norway.;Question;21;of 25;Ecotourism combines travel and;business in the exploitation of fish resources.;visits to areas of natural interest.;visits to areas of artistic interest.;visits to areas of archeological interest.;the aquarium trade.;Question;22;of 25;The United Nations Convention on the Law of the Sea stipulates that control of transit through sea straits is guaranteed if;the strait lies in the territorial sea of at least two nations.;the strait lies in the territorial sea of one or more nations.;the strait is open at both ends.;the strait is closed at one end.;the strait is controlled by nations belonging to the U.N. Security Council.;Question;23;of 25;The exclusive economic zone (EEZ) defines the interests that a nation may have over what type of activities?;Defense;Commerce;Tourism;Nuclear testing;Oil exploration;Question;24;of 25;Which of the following duties may be performed by the Convention on the Protection of Underwater Cultural Heritage?;Construct intercontinental agreements to protect biodiversity;Develop clear sea travel routes;Monitor the effects of climate change on ocean life;Coordinate efforts related to handling of maritime archeology;Monitor and recommend changes to worldwide catches;Question;25;of 25;Maritime culture is a phrase that describes;the construction of boats and large vessels.;a human culture with a close relationship with the ocean.;the charting of new sea routes.;the study of the effects of pollution in the ocean.;economic interests for the ocean's resources.


Paper#63185 | Written in 18-Jul-2015

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