Question 1

In a given geographic location, the combination of all living organisms plus the physical environment in which they live is termed a(n) ________.

Accepted Answer

The answer of In a given geographic location, the combination...

Question 2

Approximately ________% of the stored energy of an organism at one level of a food web is transferred to the tissues of the organism that consumes it at the next level of the food web.

Accepted Answer

A)   1
B)   10
C)   25
D)   50
E)   100F) B) and D)
G) A) and E)

Question 3

Match between columns
                        Premises: a human eating a dinner of broccoli, baked potatoes, and steak
a bee drinking nectar from a flower
a plant producing high energy carbohydrates from carbon dioxide and water, using energy from the sun
a cow feeding on grass in a field
a blow fly feeding on a corpse

Accepted Answer

The Answer of producer and decomposer, carnivore and omnivore and is...

Question 4

The total biomass at each level of an ecosystem or the total amount of energy stored at each level of an ecosystem can be depicted with the use of a(n) ________.

Accepted Answer

The answer of The total biomass at each level of...

Question 5

Match between columns
                        Premises: area in which the species is distributed
all populations of all species occupying the same geographical area
the role of an organism in its community
a community of organisms and the physical environment in which they live
the location of a particular organism; characterized by certain chemical and physical features

Accepted Answer

The Answer of ecosystem and geographic range and niche and is...

Question 6

Omnivores differ from carnivores in that omnivores derive their energy from

Accepted Answer

A)   green plants
B)   plants and animals
C)   detritus
D)   animals only
E)   plants, animals, and photosynthesisF) A) and D)
G) A) and E)

Question 7

Organisms that feed on the bodies of dead organisms are known as

Accepted Answer

A)   omnivores
B)   primary consumers
C)   herbivores
D)   decomposers
E)   autotrophsF) B) and C)
G) A) and E)

Question 8

With the exception of lipids, plants are capable of producing all the organic molecules they need using water and minerals from the soil and energy stored in the sugar molecules they make through photosynthesis.

Accepted Answer

A) True 
 B)False

Question 9

In plants, ammonium is often converted to nitrate before it can be used by the plant. This process is known as

Accepted Answer

A)   nitrogen fixation
B)   photosynthesis
C)   decarboxylation
D)   nitrification
E)   denitrificationF) All of the above
G) B) and E)

Question 10

Which statement describes the expected population growth in the next 50 years?

Accepted Answer

A)   The population growth will be relatively equal throughout the world.
B)   The greatest population growth is likely to occur in the more industrialized countries, including the United States and Europe.
C)   Most countries worldwide will achieve zero population growth in the next 10 years.
D)   The greatest population growth is likely to occur in the least industrialized countries.
E)   There will be a net decline of population, with the United States and other industrialized countries contributing most to the population decline.F) None of the above
G) B) and E)

Question 11

The population of a particular species that an ecosystem can sustain indefinitely is called its

Accepted Answer

A)   climax community
B)   growth rate
C)   carrying capacity
D)   environmental range
E)   habitat distributionF) A) and B)
G) A) and E)

Question 12

Nutrients cycle most rapidly with the reservoir pool of a biogeochemical cycle and least rapidly with the biomass pool.

Accepted Answer

A) True 
 B)False

Question 13

Population sizes begin to stabilize near the carrying capacity when

Accepted Answer

A)   zero population is achieved
B)   the number of species in the environment begins to decrease
C)   environmental resistance begins to limit the population's biotic potential
D)   the replacement fertility rate reaches 2.1
E)   a population's biotic potential becomes unlimitedF) C) and D)
G) None of the above

Question 14

For an organism reaching its biotic potential, the growth rate is characterized by a(n)________ curve.

Accepted Answer

exponential or J-sha...

Question 15

Which one of the following is TRUE regarding the flow of energy through an ecosystem?

Accepted Answer

A)   Energy flows from the sun to consumers to producers and then back to consumers.
B)   When significant decomposer activity occurs, energy flow through the ecosystem is not cyclic.
C)   Energy is cycled through an ecosystem and rarely lost as heat.
D)   Energy flows from the sun to producers to consumers.
E)   As energy flows through an ecosystem, it does not change form.F) A) and B)
G) B) and D)

Question 16

Most precipitation reaching land results from

Accepted Answer

A)   evaporation of surface water over land
B)   upwelling of freshwater
C)   atmospheric synthesis of water
D)   evaporation of water from oceans
E)   evaporation of water from plants during photosynthesisF) B) and E)
G) B) and D)

Question 17

Succession leads to the establishment of a(n)

Accepted Answer

A)   community that consists of only one or two dominant species
B)   climax community
C)   ecosystem
D)   community that has a limited number of natural resources
E)   community that lacks efficiency in terms of its use of energy and nutrientsF) A) and D)
G) A) and E)

Question 18

A species moving into a new habitat will be able to adapt only if there is genetic change in the population.

Accepted Answer

A) True 
 B)False

Question 19

Most primary producers are plants that generate simple, high energy carbohydrates through the process of photosynthesis. This biochemical event essentially captures sunlight and uses the energy to fuel pathways that lead to the production of useful products. How are plants able to capture sunlight to initiate this process?

Accepted Answer

Using sunlight to extract energy or to s...

Question 20

The process by which there is a natural sequence of change in the type of organisms within a particular community is called ________.

Accepted Answer

The answer of The process by which there is a...

Exam 23: Ecosystems and Populations

In a given geographic location, the combination of all living organisms plus the physical environment in which they live is termed a(n) ________.

Correct Answer
verified

For an organism reaching its biotic potential, the growth rate is characterized by a(n)________ curve.

Correct Answer
verified
exponential or J-sha...
View Answer

Succession leads to the establishment of a(n)

Correct Answer
verified

Omnivores differ from carnivores in that omnivores derive their energy from

Correct Answer
verified

The population of a particular species that an ecosystem can sustain indefinitely is called its

Correct Answer
verified

With the exception of lipids, plants are capable of producing all the organic molecules they need using water and minerals from the soil and energy stored in the sugar molecules they make through photosynthesis.

Correct Answer
verified

Which one of the following is TRUE regarding the flow of energy through an ecosystem?

Correct Answer
verified

Approximately ________% of the stored energy of an organism at one level of a food web is transferred to the tissues of the organism that consumes it at the next level of the food web.

Correct Answer
verified

Match the following.

In plants, ammonium is often converted to nitrate before it can be used by the plant. This process is known as

Correct Answer
verified

Correct Answer
verified
Using sunlight to extract energy or to s...
View Answer

Most precipitation reaching land results from

Correct Answer
verified

Which statement describes the expected population growth in the next 50 years?

Correct Answer
verified

The total biomass at each level of an ecosystem or the total amount of energy stored at each level of an ecosystem can be depicted with the use of a(n) ________.

Correct Answer
verified

Organisms that feed on the bodies of dead organisms are known as

Correct Answer
verified

Match each term to its definition.

A species moving into a new habitat will be able to adapt only if there is genetic change in the population.

Correct Answer
verified

Nutrients cycle most rapidly with the reservoir pool of a biogeochemical cycle and least rapidly with the biomass pool.

Correct Answer
verified

The process by which there is a natural sequence of change in the type of organisms within a particular community is called ________.

Correct Answer
verified

Population sizes begin to stabilize near the carrying capacity when

Correct Answer
verified

Exam 23: Ecosystems and Populations

In a given geographic location, the combination of all living organisms plus the physical environment in which they live is termed a(n) ________.

Correct AnswerverifiedShow Answer

For an organism reaching its biotic potential, the growth rate is characterized by a(n)________ curve.

Correct Answerverifiedexponential or J-sha...View AnswerShow Answer

Succession leads to the establishment of a(n)

Correct AnswerverifiedShow Answer

Omnivores differ from carnivores in that omnivores derive their energy from

Correct AnswerverifiedShow Answer

The population of a particular species that an ecosystem can sustain indefinitely is called its

Correct AnswerverifiedShow Answer

With the exception of lipids, plants are capable of producing all the organic molecules they need using water and minerals from the soil and energy stored in the sugar molecules they make through photosynthesis.

Correct AnswerverifiedShow Answer

Which one of the following is TRUE regarding the flow of energy through an ecosystem?

Correct AnswerverifiedShow Answer

Approximately ________% of the stored energy of an organism at one level of a food web is transferred to the tissues of the organism that consumes it at the next level of the food web.

Correct AnswerverifiedShow Answer

Match the following.

In plants, ammonium is often converted to nitrate before it can be used by the plant. This process is known as

Correct AnswerverifiedShow Answer

Correct AnswerverifiedUsing sunlight to extract energy or to s...View AnswerShow Answer

Most precipitation reaching land results from

Correct AnswerverifiedShow Answer

Which statement describes the expected population growth in the next 50 years?

Correct AnswerverifiedShow Answer

The total biomass at each level of an ecosystem or the total amount of energy stored at each level of an ecosystem can be depicted with the use of a(n) ________.

Correct AnswerverifiedShow Answer

Organisms that feed on the bodies of dead organisms are known as

Correct AnswerverifiedShow Answer

Match each term to its definition.

A species moving into a new habitat will be able to adapt only if there is genetic change in the population.

Correct AnswerverifiedShow Answer

Nutrients cycle most rapidly with the reservoir pool of a biogeochemical cycle and least rapidly with the biomass pool.

Correct AnswerverifiedShow Answer

The process by which there is a natural sequence of change in the type of organisms within a particular community is called ________.

Correct AnswerverifiedShow Answer

Population sizes begin to stabilize near the carrying capacity when

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
exponential or J-sha...
View 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
Using sunlight to extract energy or to s...
View 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