AnswersSC332 Environmental Science BClimate and Change in Ecosystems

Global Change Answers

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1
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What is a possible consequence of climate change to species that have a narrow temperature tolerance range?

A
extinction
B
decreased population
C
changes in migratory patterns
D
all of the above
2
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How does an early onset of spring through climate change affect plants?

A
their growing and flowering season starts earlier and is longer
B
their growing and flowering season starts later and is longer
C
their growing and flowering season starts earlier and is shorter
D
their growing and flowering season starts later and is shorter
3

How could climate change affect the ecosystems of the island nation of Samoa?

A
increased cyclone activity could damage land plants and coral reefs
B
increasing global temperatures could raise ocean levels and temperatures subsequently damaging aquatic environments
C
a and b
D
none of the above
4

Due to the increase in global temperatures, the range of plants and insects is increasing. The negative impact is that they now affect the local organisms in the area and are referred to as

Answer not available
5

Environmental factors can have various effects on ecosystems. In August 2005, Hurricane Katrina caused significant damage in several states along the Gulf Coast, including Alabama, Mississippi, and Louisiana. Thousands of people were evacuated from their homes due to flooding and other damage caused by the storm. What environmental impact would Hurricane Katrina not have caused?

A
early onset of spring
B
change in marine ecosystems
C
change in animal migration
D
change in habitats
6

Pollution is the only way that humans can cause changes to ecosystems.

A
T
B
F
7

What effect can fertilizer runoff have on an aquatic ecosystem?

A
increased plant growth leading to a decrease in fish populations
B
increased plant growth leading to an increase in fish populations
C
decreased plant growth leading to a decrease in fish populations
D
decreased plant growth leading to an increase in fish populations
8

Ecosystems change when _______.

A
living components of an ecosystem change
B
nonliving components of an ecosystem change
C
their stability is disrupted
D
all of the above
9

Which of the following is not a possible effect of rising carbon dioxide levels on plants?

A
increased photosynthesis
B
increased plant mortality
C
increased crop productivity
D
increased plant growth
10

Succession occurs when environmental factors affect an ecosystem change. Please select the best answer from the choices provided

A
T
B
F
11

Environmental factors can cause various changes in ecosystems. Which of the following would most likely have the greatest lasting effect on an ecosystem?

A
a seasonal excess of fertilizer runoff
B
a disease among a population
C
change to the landscape from construction
D
seasonal drought
12

Habitat change can occur through natural causes.

A
T
B
F
13

Climate warming trends allow plant and insect species to inhabit larger ranges.

A
T
B
F
14

Fish populations and other aquatic resources are likely to be affected by changes in what aquatic factors?

A
water temperatures
B
disease
C
water quality
D
all of the above
15

Ecosystems have trouble adjusting to short-term changes.

A
T
B
F

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