Question 1

figure 38.24 
-What conclusion was drawn from figure 38.24 c?

Accepted Answer

A)  That corals switch from type C to type D symbiotic algae after an El Nino
B)  That corals bleach and die after an El Nino
C)  That photosynthesis decreased in all strains of algae at higher temperatures
D)  That photosynthesis in strain D of algae was not decreased at higher temperatures
E)  That El Nino events do not affect coralsF) B) and C)
G) A) and D)

Question 2

The shallow shoreline region of a lake where enough light reaches the bottom for photosynthesis to occur is the:

Accepted Answer

A)  Limnetic zone
B)  Littoral zone
C)  Profundal zone
D)  Pelagic zone
E)  Benthic zoneF) A) and E)
G) B) and E)

Question 3

figure 38.24 
-In Figure 38.24 c how did the scientists measure photosynthesis?

Accepted Answer

A)  By the decrease in carbon dioxide concentration
B)  By the decrease in oxygen concentration
C)  By the increase in oxygen concentration
D)  By the increase in carbon dioxide concentration
E)  By absorption of lightF) A) and E)
G) B) and D)

Question 4

The major types of ecosystems are termed:

Accepted Answer

A)  Habitats
B)  Niches
C)  Biospheres
D)  Terrestrial zones
E)  BiomesF) A) and B)
G) A) and C)

Question 5

Scientists have observed that over the past 40 years,marmots that live in mountains have been able to live higher up the mountain.What is the best explanation for this observation?

Accepted Answer

A)  The marmots are adapting to the cold temperatures
B)  Other species are competing with the marmots for their normal habitat
C)  More snow and rain is falling at the top of the mountains
D)  It is becoming colder at the top of the mountains
E)  It is becoming warmer at the top of the mountainsF) A) and C)
G) A) and E)

Question 6

It is predicted that by the year 2010 about one-third of the world's people will reside within ten miles of an ocean.

Accepted Answer

A) True 
 B)False

Question 7

On Earth,solar energy is most intense at:

Accepted Answer

A)  The South Pole
B)  The North Pole
C)  60 degrees North latitude
D)  The equator
E)  60 degrees South latitudeF) B) and D)
G) A) and B)

Question 8

Water covers about ____ percent of the Earth's surface.

Accepted Answer

A)  33
B)  40
C)  50
D)  70
E)  80F) C) and E)
G) B) and D)

Question 9

Which of the following is not a free floating photosynthetic organism found in a lake?

Accepted Answer

A)  Phytoplankton
B)  Green algae
C)  Zooplankton
D)  Cyanobacteria
E)  DiatomF) A) and B)
G) A) and D)

Question 10

It is predicted that by the year 2010 about two-thirds of the world's people will reside within ten miles of an ocean.

Accepted Answer

A) True 
 B)False

Question 11

What do these results suggest about the importance of biodiversity in an ecosystem?

Accepted Answer

A)  That genetic diversity is not important as long as there are enough species around to replace those that don't survive
B)  That genetic diversity is not important because species cannot survive large environmental changes
C)  Biodiversity is important because the larger a population, the more likely a few will survive any environmental change
D)  That genetic diversity is necessary for an ecosystem to respond to environmental changesE) All of the above
F) B) and D)

Question 12

The biosphere is defined as:

Accepted Answer

A)  The portion of the Earth where life exists
B)  The portion of the atmosphere where life exists
C)  The portion of the ocean where life exists
D)  The portion of land on Earth where life exists
E)  The portion of fresh and salt water where life existsF) A) and E)
G) C) and D)

Question 13

Coral obtains energy by ____________.

Accepted Answer

A)  Capturing and digesting small animals and through symbiosis with photosynthetic algae
B)  Capturing and digesting small animals
C)  Through symbiosis with photosynthetic algae
D)  By performing photosynthesis
E)  By performing photosynthesis and capturing and digesting small animalsF) B) and D)
G) B) and E)

Question 14

The layer of open water in a lake where light penetrates and where most of the photosynthesis in a lake takes place is the:

Accepted Answer

A)  Littoral zone
B)  Profundal zone
C)  Pelagic zone
D)  Benthic zone
E)  Limnetic zoneF) C) and E)
G) B) and C)

Question 15

A grassland biome:

Accepted Answer

A)  Consists of mostly coniferous trees
B)  Has nutrient rich soil
C)  Has a long growing season
D)  Is warm and dry
E)  Consists of mosses and lichensF) A) and E)
G) All of the above

Question 16

The rain shadow associated with mountains:

Accepted Answer

A)  Is on the downwind side and has a wetter climate than the upwind side of the mountain
B)  Is on the upwind side and has a drier climate than the downwind side of the mountain
C)  Is on the downwind side and has a drier climate than the upwind side of the mountain
D)  Is on the upwind side and has a wetter climate than the downwind side of the mountainE) A) and B)
F) A) and C)

Question 17

An "upwelling" is an area in an ocean where cold nutrient-rich lower layers of water move upward.

Accepted Answer

A) True 
 B)False

Question 18

Producers in hydrothermal vent ecosystems:

Accepted Answer

A)  Are archaea and plants
B)  Are bacteria and archaea
C)  Are plants
D)  Are bacteria
E)  Are archaeaF) B) and D)
G) All of the above

Question 19

An El Nino brings cold water to the coasts of Peru and Ecuador.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following biomes would you predict to be dependent on fire to prevent succession by trees?

Accepted Answer

A)  Grassland and desert
B)  Desert and chaparral
C)  Grassland and chaparral
D)  Desert and deciduous forest
E)  Tundra and taigaF) B) and C)
G) A) and E)

Exam 38: The Biosphere

An "upwelling" is an area in an ocean where cold nutrient-rich lower layers of water move upward.

Correct AnswerverifiedShow Answer

The layer of open water in a lake where light penetrates and where most of the photosynthesis in a lake takes place is the:

Correct AnswerverifiedShow Answer

figure 38.24 -In Figure 38.24 c how did the scientists measure photosynthesis?

Correct AnswerverifiedShow Answer

The shallow shoreline region of a lake where enough light reaches the bottom for photosynthesis to occur is the:

Correct AnswerverifiedShow Answer

Scientists have observed that over the past 40 years,marmots that live in mountains have been able to live higher up the mountain.What is the best explanation for this observation?

Correct AnswerverifiedShow Answer

Which of the following biomes would you predict to be dependent on fire to prevent succession by trees?

Correct AnswerverifiedShow Answer

It is predicted that by the year 2010 about one-third of the world's people will reside within ten miles of an ocean.

Correct AnswerverifiedShow Answer

Which of the following is not a free floating photosynthetic organism found in a lake?

Correct AnswerverifiedShow Answer

The rain shadow associated with mountains:

Correct AnswerverifiedShow Answer

Water covers about ____ percent of the Earth's surface.

Correct AnswerverifiedShow Answer

A grassland biome:

Correct AnswerverifiedShow Answer

Producers in hydrothermal vent ecosystems:

Correct AnswerverifiedShow Answer

What do these results suggest about the importance of biodiversity in an ecosystem?

Correct AnswerverifiedShow Answer

Coral obtains energy by ____________.

Correct AnswerverifiedShow Answer

The biosphere is defined as:

Correct AnswerverifiedShow Answer

An El Nino brings cold water to the coasts of Peru and Ecuador.

Correct AnswerverifiedShow Answer

The major types of ecosystems are termed:

Correct AnswerverifiedShow Answer

On Earth,solar energy is most intense at:

Correct AnswerverifiedShow Answer

It is predicted that by the year 2010 about two-thirds of the world's people will reside within ten miles of an ocean.

Correct AnswerverifiedShow Answer

figure 38.24 -What conclusion was drawn from figure 38.24 c?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified