Bio 212 Exam 4 Questions and Answers|Latest
Update
Predict where on the globe the highest risk of skin cancer would occur, and explain why.
The highest risk of skin cancer is in the tropics, where the Sun
is often directly overhead during midday and there is a large amount of solar radiation per unit
area .
Where do the remaining wildlands occur? Most of the remaining wildlands occur in
Canada, at the top of the image
If you understand the importance of temperature and precipitation in biomes, you should be able
to explain why NPP is higher in tropical wet forests than in temperate forests. (1067) NPP
is higher in tropical wet forests than in temperate forests because the tropics experience more
sunlight, warmer temperatures, and more rain all year creating a more favorable environment for
photosynthesis than at higher latitudes, where winter limits the growth season .
PROCESS OF SCIENCE What other variable besides temperature might be affected by the
transparent chambers? What kind of
experiment could the researchers do to determine if this variable is affecting the species
composition in the chamber?
,Bio 212 Exam 4 Questions and Answers|Latest
Update
1. SOCIETY Identify which anthropogenic biome, or anthrome, you live in. What natural biome
occurred there before? (1068)
If you understand the variables that are important in aquatic biomes, you should be able to
predict which zones of oceans and lakes have the highest NPP and to explain your logic. (1072)
The neritic zone of oceans has the highest NPP because nutrients are available from runoff
and upwelling, and light is also available. The littoral zone of lakes has the highest NPP because
both nutrients and light are abundant.
Predict how a lower rate of turnover and more
stratification in Lake Tanganyika, caused by climatechange, could affect its sardine fishery.
Explain. (1073) If the lake is more stratified all year, preventing turnovers, this means
that the nutrients from deep water will not be returned to the photic zone at the surface and the
oxygen at the surface will not be mixed to deep water. This trend is likely to reduce the sardine
population because they will havea reduced food supply (due to reduced productivity) and
reduced oxygen availability (due to lack of mixing with the surface). (These consequences have
indeed already occurred, affecting the humans who rely on the sardines for food and income.)
,Bio 212 Exam 4 Questions and Answers|Latest
Update
(Chapter 49 TYK)
Name the five main levels of study in ecology from smallest to largest. Organismal,
population, community, ecosystem, and biosphere/global
Where do rain shadows exist?
a. the part of a mountain that receives prevailing winds and heavy rain
b. the region beyond a mountain range that receives dry air
c. the region along the equator where precipitation is abundant
d. the region near 30°N and 30°8 latitude that receives dry air b. the region beyond a
mountain range that receives dry air
What is the main type of vegetation in a tropical wet forest?
a. shrubs and bunchgrasses
b. herbs, grasses, and vines
c. broad-leaved deciduous trees
d. broad-leaved evergreen trees d. broad-leaved evergreen trees
, Bio 212 Exam 4 Questions and Answers|Latest
Update
What is one expected consequence of global climate change?
a. Average rainfall will increase.
b. Average rainfall will decrease.
c. Variability in rainfall will increase.
d. We cannot make predictions about future rainfall c. Variability in rainfall will increase.
(Chapter 49 TYU)
Which of these statements about aquatic biomes is true? Select True or False for each statement.
T/F The ocean is so vast that it is not influenced by human impacts.
T/F Water depth, water flow, salinity, and nutrient availability are important abiotic factors in
aquatic biomes.
T/F Once nutrients sink to the bottom of lakes，they are no longer available to organisms.
F,T,.F(Ocean upwelling and lake turnover are examples of how nutrients can be returned
to surface waters.)
Explain how the open ocean is similar to the desert, and how it is not. Likedeserts, open
oceans have plenty of sunlight but very low productivity. Unlike deserts, which
are water limited, open oceans are nutrient limited
Update
Predict where on the globe the highest risk of skin cancer would occur, and explain why.
The highest risk of skin cancer is in the tropics, where the Sun
is often directly overhead during midday and there is a large amount of solar radiation per unit
area .
Where do the remaining wildlands occur? Most of the remaining wildlands occur in
Canada, at the top of the image
If you understand the importance of temperature and precipitation in biomes, you should be able
to explain why NPP is higher in tropical wet forests than in temperate forests. (1067) NPP
is higher in tropical wet forests than in temperate forests because the tropics experience more
sunlight, warmer temperatures, and more rain all year creating a more favorable environment for
photosynthesis than at higher latitudes, where winter limits the growth season .
PROCESS OF SCIENCE What other variable besides temperature might be affected by the
transparent chambers? What kind of
experiment could the researchers do to determine if this variable is affecting the species
composition in the chamber?
,Bio 212 Exam 4 Questions and Answers|Latest
Update
1. SOCIETY Identify which anthropogenic biome, or anthrome, you live in. What natural biome
occurred there before? (1068)
If you understand the variables that are important in aquatic biomes, you should be able to
predict which zones of oceans and lakes have the highest NPP and to explain your logic. (1072)
The neritic zone of oceans has the highest NPP because nutrients are available from runoff
and upwelling, and light is also available. The littoral zone of lakes has the highest NPP because
both nutrients and light are abundant.
Predict how a lower rate of turnover and more
stratification in Lake Tanganyika, caused by climatechange, could affect its sardine fishery.
Explain. (1073) If the lake is more stratified all year, preventing turnovers, this means
that the nutrients from deep water will not be returned to the photic zone at the surface and the
oxygen at the surface will not be mixed to deep water. This trend is likely to reduce the sardine
population because they will havea reduced food supply (due to reduced productivity) and
reduced oxygen availability (due to lack of mixing with the surface). (These consequences have
indeed already occurred, affecting the humans who rely on the sardines for food and income.)
,Bio 212 Exam 4 Questions and Answers|Latest
Update
(Chapter 49 TYK)
Name the five main levels of study in ecology from smallest to largest. Organismal,
population, community, ecosystem, and biosphere/global
Where do rain shadows exist?
a. the part of a mountain that receives prevailing winds and heavy rain
b. the region beyond a mountain range that receives dry air
c. the region along the equator where precipitation is abundant
d. the region near 30°N and 30°8 latitude that receives dry air b. the region beyond a
mountain range that receives dry air
What is the main type of vegetation in a tropical wet forest?
a. shrubs and bunchgrasses
b. herbs, grasses, and vines
c. broad-leaved deciduous trees
d. broad-leaved evergreen trees d. broad-leaved evergreen trees
, Bio 212 Exam 4 Questions and Answers|Latest
Update
What is one expected consequence of global climate change?
a. Average rainfall will increase.
b. Average rainfall will decrease.
c. Variability in rainfall will increase.
d. We cannot make predictions about future rainfall c. Variability in rainfall will increase.
(Chapter 49 TYU)
Which of these statements about aquatic biomes is true? Select True or False for each statement.
T/F The ocean is so vast that it is not influenced by human impacts.
T/F Water depth, water flow, salinity, and nutrient availability are important abiotic factors in
aquatic biomes.
T/F Once nutrients sink to the bottom of lakes，they are no longer available to organisms.
F,T,.F(Ocean upwelling and lake turnover are examples of how nutrients can be returned
to surface waters.)
Explain how the open ocean is similar to the desert, and how it is not. Likedeserts, open
oceans have plenty of sunlight but very low productivity. Unlike deserts, which
are water limited, open oceans are nutrient limited
