Question 1

The taiga is a

Accepted Answer

A)   tropical rain forest.
B)   temperate deciduous forest.
C)   chaparral.
D)   grassland.
E)   coniferous forest.F) C) and D)
G) B) and E)

Question 2

There are tubeworms and clams that live at the bottom of the ocean near thermal vents.They derive their energy ultimately from

Accepted Answer

A)   the sun by way of burning fossil fuels like we do with coal and oil.
B)   the sun, but they are deep in the dark ocean and live off dead detritus that sinks to them.
C)   bacteria that break apart hydrogen sulfide molecules and are therefore not dependent ultimately on sunlight.
D)   sources not yet known.
E)   photosynthesis.F) A) and C)
G) A) and B)

Question 3

In which of the following ocean zone(s) is there no light?

Accepted Answer

A)   epipelagic
B)   mesopelagic
C)   bathypelagic
D)   abyssal
E)   bathypelagic and abyssalF) A) and C)
G) D) and E)

Question 4

Trees such as oak and maple and animals such as foxes and deer are found in the

Accepted Answer

A)   tropical rain forest.
B)   tundra.
C)   taiga.
D)   chaparral.
E)   temperate deciduous forest.F) B) and E)
G) D) and E)

Question 5

The mixing of oxygenated water with nutrient laden water that occurs in lakes is called

Accepted Answer

A)   intertidal zonation.
B)   upwelling.
C)   pelagic division.
D)   fall overturn.
E)   eutrophication.F) A) and E)
G) None of the above

Question 6

The earth is actually slightly farther from the sun during the period when the Northern Hemisphere is having summer.How can this be explained?

Accepted Answer

A)   The sun grows more powerful on a half-year cycle.
B)   There is a six-month lag phase between sunlight being absorbed and lost.
C)   The tilt of the earth presents the Northern Hemisphere in a more perpendicular angle and this increased sunlight per surface area more than offsets the decrease from added distance.
D)   There must be some mistake in measuring the earth's orbit because if the earth was farther away, we would be cooler.
E)   During the summer the Earth is actually closer to the sun even though the Northern Hemisphere is tilted away from the sun.F) B) and E)
G) A) and C)

Question 7

The ocean

Accepted Answer

A)   lacks life below the first several hundred feet.
B)   has zooplankton but not phytoplankton.
C)   covers little of the earth's surface.
D)   is not affected by freshwater pollution.
E)   covers three fourths of the planet.F) A) and E)
G) A) and B)

Question 8

Which of the following biomes has the overall harshest conditions for organism survival?

Accepted Answer

A)   tropical rain forest
B)   eastern deciduous forest
C)   alpine tundra
D)   grasslands
E)   savannaF) A) and E)
G) A) and D)

Question 9

Temperate deciduous forests are defined by

Accepted Answer

A)   humid climate with seasonal droughts.
B)   highest variation in day and night length.
C)   highest amount of organisms living in tree canopy.
D)   a growing season between 140 and 300 days.
E)   richest topsoil horizon.F) C) and D)
G) B) and D)

Question 10

Which would be characterized by rich soils,insufficient rainfall for trees,and many herbivores?

Accepted Answer

A)   grasslands
B)   chaparral
C)   desert
D)   taiga
E)   tundraF) C) and E)
G) A) and E)

Question 11

Arctic winds blowing over inland reservoirs become saturated and then lose their moisture as they move across land.This is referred to as

Accepted Answer

A)   lake effect.
B)   eutrophication.
C)   a montane successional gradient.
D)   a monsoon climate.
E)   rain shadow.F) A) and D)
G) B) and E)

Question 12

Treeless biomes are treeless primarily because

Accepted Answer

A)   of limited sunlight.
B)   there is a lack of water or the water is frozen.
C)   there is no source of seed dispersal in the region.
D)   trees are dependent upon the animals for support.
E)   trees cannot withstand hot temperatures or below-freezing cold.F) B) and C)
G) A) and B)

Question 13

If the earth was standing still (not rotating) ,wind directions would

Accepted Answer

A)   cease.
B)   all run north and south.
C)   all run east and west.
D)   remain the same since earth rotation does not affect wind directions.
E)   all run towards the equator.F) A) and B)
G) C) and E)

Question 14

The coral reef community would be best described as

Accepted Answer

A)   a hard stony desert that is nevertheless beautiful.
B)   a common view of all ocean bottom but only seen in shallow water near the shoreline.
C)   a densely populated community that only occurs in shallow water near the shoreline.
D)   a community based on animals that migrate from one area of ocean to another.
E)   undersea flowers.F) A) and B)
G) C) and D)

Question 15

Which region of the open ocean is brightly lit?

Accepted Answer

A)   epipelagic
B)   mesopelagic
C)   bathypelagic
D)   abyssal
E)   benthicF) B) and E)
G) C) and D)

Question 16

Epiphytes are most closely associated with

Accepted Answer

A)   tropical rain forests.
B)   tundra.
C)   deserts.
D)   deciduous forests.
E)   temperate deciduous forests.F) A) and D)
G) C) and D)

Question 17

What environmental factor makes it very difficult for organisms that live in estuaries?

Accepted Answer

A)   The movement of water as the river flows into the ocean.
B)   The constant fluctuation in the salinity of the water as the salt water and fresh water mix.
C)   The fluctuating nutrient levels as the river bring different levels of nutrients to the estuary.
D)   The change in water levels as the tide ebbs and flows.
E)   The change in the temperature of the water since the river water is colder than the ocean.F) B) and C)
G) B) and D)

Question 18

Which of the following do NOT help determine a biome?

Accepted Answer

A)   amount of rainfall
B)   solar energy
C)   soil
D)   atmospheric content
E)   mountain rangesF) B) and E)
G) A) and B)

Question 19

The part of a lake where light does not penetrate is the

Accepted Answer

A)   littoral zone.
B)   benthic zone.
C)   pelagic zone.
D)   profundal zone.
E)   limnetic zone.F) B) and D)
G) A) and E)

Question 20

A foul-smelling lake that is rich in algae and rooted plants but lacks oxygen is

Accepted Answer

A)   oligotrophic.
B)   eutrophic.
C)   benthic.
D)   pelagic.
E)   limnetic.F) B) and D)
G) B) and C)

Exam 36: Major Ecosystems of the Biosphere

Treeless biomes are treeless primarily because

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If the earth was standing still (not rotating) ,wind directions would

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Which region of the open ocean is brightly lit?

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The earth is actually slightly farther from the sun during the period when the Northern Hemisphere is having summer.How can this be explained?

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What environmental factor makes it very difficult for organisms that live in estuaries?

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Which of the following do NOT help determine a biome?

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In which of the following ocean zone(s) is there no light?

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Epiphytes are most closely associated with

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There are tubeworms and clams that live at the bottom of the ocean near thermal vents.They derive their energy ultimately from

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The mixing of oxygenated water with nutrient laden water that occurs in lakes is called

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The part of a lake where light does not penetrate is the

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Which of the following biomes has the overall harshest conditions for organism survival?

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Which would be characterized by rich soils,insufficient rainfall for trees,and many herbivores?

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Temperate deciduous forests are defined by

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A foul-smelling lake that is rich in algae and rooted plants but lacks oxygen is

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The coral reef community would be best described as

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The ocean

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Trees such as oak and maple and animals such as foxes and deer are found in the

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The taiga is a

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Arctic winds blowing over inland reservoirs become saturated and then lose their moisture as they move across land.This is referred to as

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