Teacher Ms. Kollar
6, 7, 16
3, 5, 17
8, 10, 13
12, 14, 15, 18-20
You are to answer all questions in all parts of this examination. Write your answers to
the Part A and Part B multiple-choice questions directly on the test
All answers should be written in pen, except for graphs and drawings which should be
done in pencil.
When you have completed the examination, you must sign the statement printed on
your separate answer sheet, indicating that you had no unlawful knowledge of the
questions or answers prior to the examination and that you have neither given nor
received assistance in answering any of the questions during the examination. Your
answer sheet cannot be accepted if you fail to sign this declaration.
DO NOT OPEN THIS EXAMINATION BOOKLET UNTIL THE SIGNAL IS GIVEN.
1). Which human activity is correctly paired with its likely future consequence?
(1) overfishing in the Atlantic — increase in supply of flounder and salmon as food for
(2) development of electric cars or hybrid vehicles — increased rate of global warming
(3) use of fossil fuels — depletion of underground coal, oil, and natural gas supplies
(4) genetically engineering animals — less food available to feed the world’s population
2.) Increased industrialization will most likely
(1) decrease available habitats
(2) increase environmental carrying capacity for native species
(3) increase the stability of ecosystems
(4) decrease global warming
3.) One irreversible effect of both deforestation and water pollution on the environment
(1) extinction of species
(2) thinning of the ozone shield
(3) depletion of atmospheric carbon dioxide levels
(4) increase in renewable resource
4.) One likely reason some experimental automobiles have been developed to use
rather than gasoline is that
(1) gasoline is made from petroleum, a nonrenewable resource
(2) Earth has an unlimited supply of fossil fuels
(3) the use of electricity will eliminate the need for all antipollution laws
(4) the use of electricity will increase the manufacture of antipollution devices for cars
5.) One possible reason for the rise in the average air temperature at Earth’s surface is
(1) decomposers are being destroyed
(2) deforestation has increased the levels of oxygen in the atmosphere
(3) industrialization has increased the amount of carbon dioxide in the air
(4) growing crops is depleting the ozone shield
6.) The Susquehanna River, which runs through the states of New York, Pennsylvania,
and Maryland, received the designation “America’s Most Endangered River” in 2005.
One of the river’s problems results from the large number of sewage overflow sites that
are found along the course of the river. These sewage overflow sites are a direct result of
an increase in:
(1) global warming
(2) recycling programs
(3) human population
(4) atmospheric changes
7.)Many farmers plant corn, and then harvest the entire plant at the end of the growing
season. One negative effect of this action is that
(1) soil minerals used by corn plants are not recycled
(2) corn plants remove acidic compounds from the air all season long
(3) corn plants may replace renewable sources of energy
(4) large quantities of water are produced by corn plants
8.) A change in the acidity of mountain lakes would most likely be a result of
(1) ecological succession of the area at the top of the mountain
(2) the introduction of new species into the lakes
(3) air pollution from smoke stacks miles away
(4) planting grasses and shrubs around the lakes
9.) Continued depletion of the ozone layer will most likely result in
(1) an increase in skin cancer among humans
(2) a decrease in atmospheric pollutants
(3) an increase in marine ecosystem stability
(4) a decrease in climatic changes
10.) Farming reduces the natural biodiversity of an area, yet farms are necessary to feed
the world’s human population. This situation is an example of
(1) poor land use
(3) a trade-off
(4) a technological fix
11.) A major reason that humans can have such a significant impact on an ecological
community is that humans
(1) can modify their environment through technology
(2) reproduce faster than most other species
(3) are able to increase the amount of finite resources available
(4) remove large amounts of carbon dioxide from the air
12.) A forest is cut down and is replaced by a cornfield. A negative consequence of this
(1) an increase in the carbon dioxide released into the atmosphere
(2) an increase in the size of predators
(3) a decrease in biodiversity
(4) a decrease in the amount of soil that is washed away during rainstorms
13.) Identify one farming practice that could be a source of environmental pollution.
Base your answers to questions 14 through 15 on the information below and on your
knowledge of biology.
Throughout the world, in nearly every ecosystem, there are animal and plant species
present that were introduced into the ecosystem by humans or transported to the
ecosystem as a result of human activities. Some examples are the zebra mussel, which
was introduced to the Great Lakes and the brown tree snake, which was introduced to
14.) State one reason why an introduced species might be very successful in a new
15.) Identify one action the government could take to prevent the introduction of
Base your answers to questions 16 and 17 on the information below and on your
knowledge of biology.
A factory in Florida had dumped toxic waste into the soil for 40 years. Since the
company is no longer in business, government officials removed the toxic soil and piled
it up into large mounds until they can finish evaluating how to treat the waste.
16.) State one way these toxins could move from the soil into local ecosystems, such as
nearby lakes and ponds.
17.) State one way these toxins might affect local ecosystems.
Base your answers to questions 18 through 20 on the passage below and on your
knowledge of biology.
Overstaying Their Welcome: Cane Toads in Australia
Everyone in Australia is in agreement that the cane toads have got to go. The problem is
getting rid of them. Cane toads, properly known as Bufo marinus, are the most notorious
of what are called invasive species in Australia and beyond. But unlike other species of
the same classification, cane toads were intentionally introduced into Australia. The
country simply got much more and much worse than it bargained for. Before 1935,
Australia did not have any toad species of its own. What the country did have, however,
was a major beetle problem. Two species of beetles in particular, French’s Cane Beetle
and the Greyback
Cane Beetle, were in the process of decimating [destroying] the north- eastern state of
Queenland’s sugar cane crops. The beetle’s larvae were eating the roots of the sugar cane
and stunting, if not killing, the plants. The anticipated solution to this quickly escalating
problem came in the form of the cane toad. After first hearing about the amphibians in
at a conference in the Caribbean, growers successfully lobbied to have the cane toads
imported to battle and hopefully destroy the beetles and save the crops....
The plan backfired completely and absolutely. As it turns out, cane toads do not jump
very high, only about two feet actually, so they did not eat the beetles that for the most
part lived in the upper stalks of cane plants. Instead of going after the beetles, as the
planned, the cane toads began going after everything else in sight— insects, bird’s eggs
and even native frogs. And because the toads are poisonous, they began to kill would-be
predators. The toll on native species has been immense....
Source: Tina Butler, mongabay.com, April 17, 2005
18.) State one reason why the cane toads were imported to Australia.
19). Identify one adaptation of cane toads that made them successful in their new
20.) State one specific example of how the introduction of the cane toads threatened
biodiversity in Australia.