Week 4 Test Review-APES
Which of the following best explains why the maximum sustainable yield for ocean fisheries has been exceeeded
Too many fish of reproductive age are harvested
PCBs are typically released by and can cause
, industry, liver damage
Convention on International Trade in Endangered Species(CITIES)
1,111 & IV
Energy Policy Act establishes the following:
11 only
When scientists discover the existence of an emerging infectious disease such as SARS (severe acute respiratory syndrome), they must take immediate steps to determine the cause of the disease and the method of transmission. These initial steps would include which of the following
Acquiring recent medical and travel histories of the disease victims
Provides for the development and regulation of the uses of nuclear materials and facilities in the US
Atomic Energy Act(AEA)
For a certain insecticide, the LD-50 dosage level for rats is determined to be 250 miligrams per kilogram of body mass. On the basis of this information, which of the following is the best prediction regarding the consequences of receiving this dosage of the insecticide
Five hundred out of every one thousand rats would die
In a river ecosystem, dissolved oxygen concentrations drop quickly downstream from a point-source input of organic matter into the river. This effect is due to
Increasing bacterial activity as organic matter decays
Negative environmental impacts associated with large-scale hydroelectric projects have been demonstrated in which of the following areas?
James Bay, Quebec
The use of which of the following to control agricultural insect pests is most likely to have a negative and persistent impact on an ecosystem
Lindane, a chlorinated hydrocarbon
As urbanization increases and natural soil surfaces are covered, the groundwater supply is reduced to
Loss of recharge area
This act created Yosemite and Yellow Stone National Parks
National Park Act
This law states that a company cannot ship oil into the US until it presents a plan to prevent spills
Oil Polllution aCT
Chemicals that interfere with normal functioning of an animals hormones are called endocrine disruptors and include the following chemcicals
Phalates, Atrazine, and DDT
Which of the following elements is most likely to limit primary production in freshwater lakes
Phosphorus
The greatest amount of fresh water is found in which of the following?
Polar ice caps and glaciers
Which of the following is the usual cause of cultural eutrophication in surface waters of both developed and developing countries
Runoff of nitrate compounds into bodies of water
Overuse of groundwater in coastal areas would most likely result in which of the following
Saltwater intrusion
Requires restoration of abandoned mines
Surface Mining Control and Reclamation Act
Information gathered by a scientist about the toxicity of chemical X and chemical Y showed that they had individual safe limits for fish at particular concentrations. But when they were used together at the same concentrations, there were extensive fish kills. This is an example of
Synergism
Alcohol is best classified as
Teratogen
Acid deposition would most likely result in which of the following?
The release of aluminum ions from soil
Which of the following is a measure of the amount of suspended material in water?
Turbidity
Ticks are vectors for various diseases. The ticks acquire the disease-causing organisms from
feeding on host animals
Atrazine is a
herbicide
Montreal Protocol
initiated the phase out of all CFC's
Lead and mercury are both classified as
neurotoxin
Lakes that are characterized by high water clarity and low concentrations of dissolved nutrients are classified as
oligotrophic
Phalates can be found in
plastics and cosmetics
Population biologists are concerned about introduced species such as the zebra mussel in North America because
the introduced species compete for resources more effectively than native species