BIO145 Marine Biology Lesson 15 Quiz

Subject: Biology    / General Biology
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.

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