Question 1

The poor soil of tropical rain forests is due to

Accepted Answer

A)   poor quality substrate, such as bedrock that lacks iron and phosphorus.
B)   intense sunlight bleaching the substrate.
C)   lack of litter; the leaves never fall to the ground.
D)   lack of freezing cold to break apart the substrate bedrock.
E)   high temperatures that allow rapid decomposition and rapid recycling of nutrients.F) A) and E)
G) A) and D)

Question 2

Freshwater and marine microscopic organisms that freely drift in fresh or salt water are called

Accepted Answer

A)   plankton.
B)   benthic.
C)   abyssal.
D)   neritic.
E)   pelagic.F) B) and D)
G) A) and E)

Question 3

The following number of ant species were counted in these biomes. Tundra (5) 
Taiga (18) 
Conifer Mixed Forest (41) 
Temperature Mixed Forest (103) 
The most likely reason(s) for the number of ant species in this list is/are

Accepted Answer

A)   greater sunlight.
B)   variations in soil type.
C)   different species of predators.
D)   air pressure, humidity, and resulting rainfall.
E)   the amount of photosynthetic production, length of the warm season, and diversity of plants.F) C) and D)
G) C) and E)

Question 4

Which of the following factors will have the greatest impact in determining the type of biome in a location?

Accepted Answer

A)   Temperature
B)   Soil conditions
C)   Rainfall
D)   Wind patterns
E)   The presence of mountainsF) C) and D)
G) B) and E)

Question 5

Compare the mean annual temperature and precipitation ranges required for the following biomes: temperate deciduous forest,tropical rainforest,and tundra.

Accepted Answer

The temperate deciduous forest has a mea...

Question 6

Which of the following statements is NOT true about biomes?

Accepted Answer

A)   They vary according to climate.
B)   They are communities of similar populations.
C)   They vary according to latitude and altitude.
D)   They are the smallest communities on land.
E)   They are characterized by particular animals and plants.F) B) and D)
G) D) and E)

Question 7

A forest found in a broad belt in northern Eurasia and North America,with pine trees,mosses,and lichens,is called the

Accepted Answer

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

Question 8

In the summer,a deep lake contains three layers: an upper ___,a middle ___,and a lower ___.

Accepted Answer

A)   epilimnion; thermocline; hypolimnion
B)   thermocline; hypolimnion; epilimnion
C)   hypolimnion; epilimnion; thermocline
D)   epilimnion; hypolimnion; thermocline
E)   thermocline; epilimnion; hypolimnionF) None of the above
G) A) and D)

Question 9

Organisms living in the ____ zone of the open ocean include the tube worms,clams,brittle stars,and sea urchins.

Accepted Answer

A)   epipelagic
B)   mesopelagic
C)   bathypelagic
D)   benthic
E)   littoralF) None of the above
G) A) and C)

Question 10

When wet ocean winds blow onshore for half the year and slowly rise and cool,causing long periods of rainfall over a large area,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) C) and E)
G) A) and E)

Question 11

Why is the energy of the sun less intense at the poles as compared to the equator?

Accepted Answer

A)   The tilt of the earth moves the poles farther away from the most intense sunlight.
B)   Because the earth is spherical and the sun shines toward the equator the sunlight is more spread out at the poles and therefore less intense.
C)   The movement of wind across the face of the earth pulls cooler air from over the oceans and blows it toward the poles. This cools the poles while leaving the region around the equator hot.
D)   The movement of cool waters in ocean currents flows away from the equator and cools the air farther from the equator causing the polar regions to be cooler than the equatorial region.
E)   The earth shifts in its orbit periodically and at times it moves farther from the sun. This movement coincides with times that the earth is tilted toward the sun so the poles never receive as much sunlight as the equator.F) A) and D)
G) A) and C)

Question 12

Which biome has both a high temperature and plentiful water?

Accepted Answer

A)   desert
B)   tundra
C)   savanna
D)   tropical forest
E)   taigaF) A) and E)
G) A) and B)

Question 13

The largest biome on earth is the

Accepted Answer

A)   tundra.
B)   taiga.
C)   temperate deciduous forest.
D)   desert.
E)   ocean.F) C) and E)
G) All of the above

Question 14

Which of the following is the correct sequence of the different zones in the open ocean (top to bottom) ?

Accepted Answer

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

Question 15

The phenomenon called a rain shadow requires what topographical elements?

Accepted Answer

A)   For a rain shadow to occur a mountain range must be located to the leeward of the ocean.
B)   For a rain shadow to occur a mountain range must be located in the middle of a desert.
C)   For a rain shadow to occur a mountain range must be located next to a large lake.
D)   For a rain shadow to occur a mountain range must be located to the windward of the ocean.
E)   For a rain shadow to occur a mountain range must be located in a tropical rainforest.F) B) and D)
G) C) and D)

Question 16

Which of the following statements is NOT true about deciduous trees?

Accepted Answer

A)   They include oak, beech, and maple trees.
B)   They lose their leaves in the fall.
C)   They grow their leaves in the spring.
D)   They are found in a moderate climate with a relatively high rainfall.
E)   They are found north of the taiga in eastern North America.F) A) and D)
G) A) and E)

Question 17

Why is a rocky sea shore inhabited by more types of organisms than a sandy sea shore?

Accepted Answer

A)   The rocks trap and hold more nutrients.
B)   The sand drains of water quickly at low tide.
C)   The sand does not hold nutrients.
D)   Predators are more likely to hunt along sandy shores.
E)   It is easier for organisms to attach to the rocks.F) A) and E)
G) D) and E)

Question 18

In the water cycle,evaporated equatorial air masses that rise lose most of their water.The air immediately then flows

Accepted Answer

A)   all the way to the poles where it causes snow.
B)   all the way to the poles if it does not encounter mountain ranges, which it usually does.
C)   to about 60 ∘\circ∘  north or south and then cool and condense, supporting a band of moist vegetation.
D)   to about 30 ∘\circ∘  north or south and then descends, creating a band of deserts.
E)   to the west. F) C) and E)
G) All of the above

Question 19

An African tropical grassland that varies cool,dry seasons with hot,rainy seasons is the

Accepted Answer

A)   savanna.
B)   chaparral.
C)   prairie.
D)   taiga.
E)   tundra.F) C) and E)
G) C) and D)

Question 20

Of all the aquatic communities,____ act as a nutrient trap.

Accepted Answer

A)   oceans
B)   lakes
C)   sandy beaches
D)   estuaries
E)   riversF) None of the above
G) A) and D)

Exam 36: Major Ecosystems of the Biosphere

An African tropical grassland that varies cool,dry seasons with hot,rainy seasons is the

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Organisms living in the ____ zone of the open ocean include the tube worms,clams,brittle stars,and sea urchins.

Correct AnswerverifiedShow Answer

In the water cycle,evaporated equatorial air masses that rise lose most of their water.The air immediately then flows

Correct AnswerverifiedShow Answer

Why is a rocky sea shore inhabited by more types of organisms than a sandy sea shore?

Correct AnswerverifiedShow Answer

Which of the following factors will have the greatest impact in determining the type of biome in a location?

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The largest biome on earth is the

Correct AnswerverifiedShow Answer

Why is the energy of the sun less intense at the poles as compared to the equator?

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In the summer,a deep lake contains three layers: an upper ___,a middle ___,and a lower ___.

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Which biome has both a high temperature and plentiful water?

Correct AnswerverifiedShow Answer

Which of the following statements is NOT true about biomes?

Correct AnswerverifiedShow Answer

Which of the following statements is NOT true about deciduous trees?

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The phenomenon called a rain shadow requires what topographical elements?

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When wet ocean winds blow onshore for half the year and slowly rise and cool,causing long periods of rainfall over a large area,this is referred to as

Correct AnswerverifiedShow Answer

The poor soil of tropical rain forests is due to

Correct AnswerverifiedShow Answer

Freshwater and marine microscopic organisms that freely drift in fresh or salt water are called

Correct AnswerverifiedShow Answer

A forest found in a broad belt in northern Eurasia and North America,with pine trees,mosses,and lichens,is called the

Correct AnswerverifiedShow Answer

Compare the mean annual temperature and precipitation ranges required for the following biomes: temperate deciduous forest,tropical rainforest,and tundra.

Correct AnswerverifiedThe temperate deciduous forest has a mea...View AnswerShow Answer

Of all the aquatic communities,____ act as a nutrient trap.

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The following number of ant species were counted in these biomes. Tundra (5) Taiga (18) Conifer Mixed Forest (41) Temperature Mixed Forest (103) The most likely reason(s) for the number of ant species in this list is/are

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Which of the following is the correct sequence of the different zones in the open ocean (top to bottom) ?

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In the summer,a deep lake contains three layers: an upper _,a middle _,and a lower ___.

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The temperate deciduous forest has a mea...
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