EVR 1001 chapter 4- Questions and Answers
1. insects Imagine a large state park near your home. Which of the following are probably
the most crucial and essential part of that park's ecosystem?
2. most species Imagine a square meter of leafy forest soil underneath an oak or maple tree. Which
would be micro- of the following is likely to exist within this patch of soil?
scopic
about a thousand
different species
or organisms
about a quarter
of a million indi-
viduals
3. bacterial cells After examining every single cell in your body, you would conclude that humans
are made up mostly of .
4. bacteria Which of the following are probably the most abundant but least understood of
all forms of life on Earth?
5. After a dis- Which statement is correct concerning the process of ecological succession?
turbance, the
community goes
through a some-
what predictable
set of changes
until reaching a
final state.
6. `begin to sup- If global climate change results in an area of temperate grassland receiving less
port more desert rainfall and higher temperatures, it will .
species
7. lichens
1/9
, EVR 1001 chapter 4- Questions and Answers
Human activities, including fossil fuel combustion, farming, and deforestation,
are known to increase atmospheric levels of greenhouse gases such as carbon
dioxide, methane, and nitrous oxide. Measurable warming of Earth due to these
gases can alter ecosystem dynamics. In addition to the direct climatic effects on
organisms within biomes, warming can melt permafrost in the tundra and increase
precipitation in arctic areas. Global warming also can increase sea surface tem-
peratures, melting sea ice in the Arctic and increasing the intensity of hurricanes
in temperate and tropical coastal areas. Within communities, climatic change can
shift interdependent species "out-of-sync," potentially causing indirect loss of
species.Which of the following might be first to populate an area after glaciers
melt in response to global climate change?
8. return ecosys- Ecological restoration tries to .
tems to a more
"natural" state,
often what they
were like before
industrial civiliza-
tion altered them
9. coevolution Human activities, including fossil fuel combustion, farming, and deforestation,
are known to increase atmospheric levels of greenhouse gases such as carbon
dioxide, methane, and nitrous oxide. Measurable warming of Earth due to these
gases can alter ecosystem dynamics. In addition to the direct climatic effects on
organisms within biomes, warming can melt permafrost in the tundra and increase
precipitation in arctic areas. Global warming also can increase sea surface tem-
peratures, melting sea ice in the Arctic and increasing the intensity of hurricanes
in temperate and tropical coastal areas. Within communities, climatic change can
shift interdependent species (such as flowering plants and bees) "out-of-sync,"
potentially causing indirect loss of species.
Global warming has been hypothesized to cause many plants to flower earlier. If
2/9
1. insects Imagine a large state park near your home. Which of the following are probably
the most crucial and essential part of that park's ecosystem?
2. most species Imagine a square meter of leafy forest soil underneath an oak or maple tree. Which
would be micro- of the following is likely to exist within this patch of soil?
scopic
about a thousand
different species
or organisms
about a quarter
of a million indi-
viduals
3. bacterial cells After examining every single cell in your body, you would conclude that humans
are made up mostly of .
4. bacteria Which of the following are probably the most abundant but least understood of
all forms of life on Earth?
5. After a dis- Which statement is correct concerning the process of ecological succession?
turbance, the
community goes
through a some-
what predictable
set of changes
until reaching a
final state.
6. `begin to sup- If global climate change results in an area of temperate grassland receiving less
port more desert rainfall and higher temperatures, it will .
species
7. lichens
1/9
, EVR 1001 chapter 4- Questions and Answers
Human activities, including fossil fuel combustion, farming, and deforestation,
are known to increase atmospheric levels of greenhouse gases such as carbon
dioxide, methane, and nitrous oxide. Measurable warming of Earth due to these
gases can alter ecosystem dynamics. In addition to the direct climatic effects on
organisms within biomes, warming can melt permafrost in the tundra and increase
precipitation in arctic areas. Global warming also can increase sea surface tem-
peratures, melting sea ice in the Arctic and increasing the intensity of hurricanes
in temperate and tropical coastal areas. Within communities, climatic change can
shift interdependent species "out-of-sync," potentially causing indirect loss of
species.Which of the following might be first to populate an area after glaciers
melt in response to global climate change?
8. return ecosys- Ecological restoration tries to .
tems to a more
"natural" state,
often what they
were like before
industrial civiliza-
tion altered them
9. coevolution Human activities, including fossil fuel combustion, farming, and deforestation,
are known to increase atmospheric levels of greenhouse gases such as carbon
dioxide, methane, and nitrous oxide. Measurable warming of Earth due to these
gases can alter ecosystem dynamics. In addition to the direct climatic effects on
organisms within biomes, warming can melt permafrost in the tundra and increase
precipitation in arctic areas. Global warming also can increase sea surface tem-
peratures, melting sea ice in the Arctic and increasing the intensity of hurricanes
in temperate and tropical coastal areas. Within communities, climatic change can
shift interdependent species (such as flowering plants and bees) "out-of-sync,"
potentially causing indirect loss of species.
Global warming has been hypothesized to cause many plants to flower earlier. If
2/9
