Question 1

The diversity in a kelp forest community can be measured by

Accepted Answer

A)  the number of kelp living in the community.
B)  the number of fishes living in the community.
C)  the abiotic resources utilized by the community.
D)  the number of niches in the community.
E)  the number of different species of living organisms in the community.F) B) and E)
G) A) and C)

Question 2

The physical place where members of a population live is termed a

Accepted Answer

A)  competitive zone.
B)  community.
C)  habitat.
D)  symbiont.
E)  nichE.F) A) and B)
G) A) and E)

Question 3

As temperatures in the Arctic rise,which of the following changes may occur?

Accepted Answer

A)  Tundra will be replaced by taigA.
B)  Taiga will be replaced by tundra.
C)  Temperate forest will be replaced by taiga.
D)  Tundra will be replaced by desert.
E)  Taiga will be replaced by temperate rain forest.F) A) and E)
G) C) and E)

Question 4

Mycorrhizal fungi help with nutrient cycles by helping to absorb minerals,which they share with plants in return for carbohydrates.obtain food from plants in exchange for water and nutrients.This shows that nutrient cycling can be involved in an example of

Accepted Answer

A)  commensalism.
B)  parasitism.
C)  mutualism.
D)  predation.
E)  herbivory.F) C) and D)
G) A) and E)

Question 5

The different seasons of the year are caused by

Accepted Answer

A)  the tilt of the Earth's axis as the Earth travels around the Sun.
B)  the rotation of the Earth around the Sun.
C)  the rotation of the Earth on its axis.
D)  the rotation of the moon around the Earth.
E)  the gravitational pull of the moon as it travels around the Earth.F) A) and E)
G) B) and E)

Question 6

An example of a keystone species is a root-associated fungus that conifer trees need in order to survive and that supplies food for rodents.

Accepted Answer

A) True 
 B)False

Question 7

The reliance of a plant on one type of insect for pollination and that insect having only the nectar of that plant as its food source is an example of coevolution.

Accepted Answer

A) True 
 B)False

Question 8

A relationship between different species in which one species lives in or on another is

Accepted Answer

A)  resource partitioning.
B)  coevolution.
C)  symbiosis.
D)  predation.
E)  niche sharing.F) A) and B)
G) A) and C)

Question 9

Within convection cells,warm moist air rises from the equator and descends at 20-30 degrees from the equator.Convection cells are partially responsible for the distribution of which two biomes?

Accepted Answer

A)  tropical rain forests and temperate grasslands
B)  boreal forests and subtropical deserts
C)  tropical rain forests and subtropical deserts
D)  tropical rain forests and arctic tundra
E)  boreal forests and temperate forestsF) A) and B)
G) A) and C)

Question 10

If you transplanted an aquatic plant from a freshwater pond to an estuary,what would probably kill the plant?

Accepted Answer

A)  changes in temperature at different depths
B)  daily changes in salinity
C)  movement of water
D)  light penetrating only through the photic zone
E)  damage from pollutionF) None of the above
G) C) and D)

Question 11

Which of the following is not a major terrestrial biome of Earth?

Accepted Answer

A)  the temperate grasslands
B)  the tundra
C)  the taiga
D)  the Antarctic
E)  the tropical rain forestF) B) and C)
G) A) and E)

Question 12

Secondary consumers are

Accepted Answer

A)  carnivores.
B)  herbivores.
C)  bacteria.
D)  fungi.
E)  All answers are correct.F) B) and E)
G) D) and E)

Question 13

"Net primary productivity" is the amount of energy

Accepted Answer

A)  used in metabolism by producers.
B)  given off as heat by producers.
C)  trapped by the autotrophs of an ecosystem.
D)  available for consumers.
E)  used in metabolism by consumers.F) A) and E)
G) B) and C)

Question 14

Examples of terrestrial biomes are grasslands,forests,lakes,and deserts.

Accepted Answer

A) True 
 B)False

Question 15

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat," the interaction between panic grass and its endophytic fungus allows them to grow at 65 ∘\circ∘ C together,but not independently.This is an example of

Accepted Answer

A)  mutualism.
B)  commensalism.
C)  parasitism.
D)  predation.
E)  competition. F) A) and B)
G) All of the above

Question 16

A flowering plant and a bird which occasionally perches on its branches are not likely to coevolve.

Accepted Answer

A) True 
 B)False

Question 17

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 lichens.F) A) and B)
G) A) and C)

Question 18

Scientists reported that hurricane intensity has increased over the past 35 years,coinciding with increasing sea temperature.At the equator,the Earth receives the

Accepted Answer

A)  maximum amount of solar radiation per unit areA.
B)  minimum amount of solar radiation per unit area.
C)  maximum amount of solar radiation only over the ocean.
D)  maximum amount of solar radiation only over the land mass.E) A) and B)
F) A) and C)

Question 19

The term "abiotic" means "nonliving."

Accepted Answer

A) True 
 B)False

Question 20

If asked to put an arrow in a diagram showing energy flow through an ecosystem,you would use a single-headed arrow.

Accepted Answer

A) True 
 B)False

Exam 19: Communities and Ecosystems

The diversity in a kelp forest community can be measured by

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Examples of terrestrial biomes are grasslands,forests,lakes,and deserts.

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Secondary consumers are

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The different seasons of the year are caused by

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The term "abiotic" means "nonliving."

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Mycorrhizal fungi help with nutrient cycles by helping to absorb minerals,which they share with plants in return for carbohydrates.obtain food from plants in exchange for water and nutrients.This shows that nutrient cycling can be involved in an example of

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Scientists reported that hurricane intensity has increased over the past 35 years,coinciding with increasing sea temperature.At the equator,the Earth receives the

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A grassland biome

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If you transplanted an aquatic plant from a freshwater pond to an estuary,what would probably kill the plant?

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The physical place where members of a population live is termed a

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Within convection cells,warm moist air rises from the equator and descends at 20-30 degrees from the equator.Convection cells are partially responsible for the distribution of which two biomes?

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A relationship between different species in which one species lives in or on another is

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An example of a keystone species is a root-associated fungus that conifer trees need in order to survive and that supplies food for rodents.

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In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat," the interaction between panic grass and its endophytic fungus allows them to grow at 65 ∘\circ∘ C together,but not independently.This is an example of

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A flowering plant and a bird which occasionally perches on its branches are not likely to coevolve.

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"Net primary productivity" is the amount of energy

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The reliance of a plant on one type of insect for pollination and that insect having only the nectar of that plant as its food source is an example of coevolution.

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Which of the following is not a major terrestrial biome of Earth?

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As temperatures in the Arctic rise,which of the following changes may occur?

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If asked to put an arrow in a diagram showing energy flow through an ecosystem,you would use a single-headed arrow.

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In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat," the interaction between panic grass and its endophytic fungus allows them to grow at 65^$\circ$C together,but not independently.This is an example of

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