Question 1

The type of location where a species lives is its ________.

Accepted Answer

habitat

Question 2

A biogeochemical cycle involves the cycling of a chemical element between the biomass, exchange pool, and ________.

Accepted Answer

reservoir

Question 3

During photosynthesis, high energy carbohydrates are produced at the end of

Accepted Answer

A)  light absorption by chlorophyll 
B)  cellular respiration 
C)  the light reactions 
D)  the Calvin cycle 
E)  the electron transport pathway 
A)  light absorption by chlorophyll 
B)  cellular respiration 
C)  the light reactions 
D)  the Calvin cycle 
E)  the electron transport pathway D

Question 4

A population is comprised of one or more species of organisms that may interact but do not interbreed.

Accepted Answer

A) True 
 B)False

Question 5

The introduction of invasive species may increase the environmental resistance for a native species.

Accepted Answer

A) True 
 B)False

Question 6

Which one of the following is represented by the calculation: (number of births - number of deaths)/total population?

Accepted Answer

A)  fertility rate 
B)  birth rate 
C)  population growth rate 
D)  replacement fertility rate 
E)  zero population growth 
A)  fertility rate 
B)  birth rate 
C)  population growth rate 
D)  replacement fertility rate 
E)  zero population growth

Question 7

The process of converting nitrogen gas to ammonium is called

Accepted Answer

A)  biogeochemical processing 
B)  sublimation 
C)  nitrogen fixation 
D)  evaporation 
E)  nitrification 
A)  biogeochemical processing 
B)  sublimation 
C)  nitrogen fixation 
D)  evaporation 
E)  nitrification

Question 8

Chemicals that make up living organisms are constantly recycled between organisms and the Earth.

Accepted Answer

A) True 
 B)False

Question 9

The biosphere is so large that, unlike the case of the more simple ecosystems, it is impossible to disturb the balances that exist in this ecosystem.

Accepted Answer

A) True 
 B)False

Question 10

The size of a population of a given species that can be indefinitely sustained by an ecosystem is its ________.

Accepted Answer

The answer of The size of a population of a...

Question 11

Match between columns
                        Premises: minerals in solid rock
carbon-containing compounds in fossil fuels
carbon dioxide in the atmosphere
a deer eating grass

Accepted Answer

The Answer of exchange pool and reservoir and biomass is...

Question 12

Major end products from photosynthesis include oxygen gas and simple high energy carbohydrates.

Accepted Answer

A) True 
 B)False

Question 13

Populations of species that occupy the same geographic area and interact with each other are collectively called a(n)

Accepted Answer

A)  population 
B)  ecosystem 
C)  drift 
D)  biosphere 
E)  community 
A)  population 
B)  ecosystem 
C)  drift 
D)  biosphere 
E)  community

Question 14

Woodpeckers, insects, bacteria, hawks, and raccoons are found to reside in the same forest. Studies of the interactions between these organisms would be at the level of a

Accepted Answer

A)  community 
B)  species 
C)  biosphere 
D)  population 
E)  niche 
A)  community 
B)  species 
C)  biosphere 
D)  population 
E)  niche

Question 15

A scientist is studying the flow of energy into and out of a rain forest as well as the usage of energy by the organisms that inhabit that area. This study would be at the level of a(n)

Accepted Answer

A)  population 
B)  biosphere 
C)  community 
D)  species 
E)  ecosystem 
A)  population 
B)  biosphere 
C)  community 
D)  species 
E)  ecosystem

Question 16

Which one of the following statements accurately reflects the nature of climax communities?

Accepted Answer

A)  Climax communities have more consumers than producers, because the producers are so efficient. 
B)  Climax communities develop very quickly. 
C)  Succession begins once a climax community has been established. 
D)  Climax communities are so well established that when disturbed, they quickly recover. 
E)  Climax communities are the most efficient in terms of energy utilization and exhibit the greatest species diversity. 
A)  Climax communities have more consumers than producers, because the producers are so efficient. 
B)  Climax communities develop very quickly. 
C)  Succession begins once a climax community has been established. 
D)  Climax communities are so well established that when disturbed, they quickly recover. 
E)  Climax communities are the most efficient in terms of energy utilization and exhibit the greatest species diversity.

Question 17

The Black Death that devastated the human population of portions of Europe during the 1300s represents a

Accepted Answer

A)  modest bacterial outbreak 
B)  pandemic 
C)  localized environment at carrying capacity 
D)  regional environment exceeding carrying capacity 
E)  viral epidemic 
A)  modest bacterial outbreak 
B)  pandemic 
C)  localized environment at carrying capacity 
D)  regional environment exceeding carrying capacity 
E)  viral epidemic

Question 18

Which one of the following statements is TRUE regarding the nitrogen cycle?

Accepted Answer

A)  Nitrogen fixation results in the production of nitrogen from carbon. 
B)  Atmospheric nitrogen cannot be used by living organisms because two nitrogen atoms are held tightly together by a triple covalent bond. 
C)  Plants rely on animals for their source of usable nitrogen. 
D)  Once nitrogen is "fixed," it must then be converted to nitrogen gas before it can be used by living organisms. 
E)  In a balanced ecosystem, denitrification occurs more often than nitrogen fixation. 
A)  Nitrogen fixation results in the production of nitrogen from carbon. 
B)  Atmospheric nitrogen cannot be used by living organisms because two nitrogen atoms are held tightly together by a triple covalent bond. 
C)  Plants rely on animals for their source of usable nitrogen. 
D)  Once nitrogen is "fixed," it must then be converted to nitrogen gas before it can be used by living organisms. 
E)  In a balanced ecosystem, denitrification occurs more often than nitrogen fixation.

Question 19

The majority of precipitation reaching land is derived from evaporation of oceanic waters.

Accepted Answer

A) True 
 B)False

Question 20

A species' biotic potential is intrinsically determined by all of the following EXCEPT which one?

Accepted Answer

A)  the number of members of reproductive age 
B)  the number of offspring produced by each reproducing member 
C)  the time span before offspring reach reproductive maturity 
D)  the ratio of males to females 
E)  the presence of competing species in the same habitat 
A)  the number of members of reproductive age 
B)  the number of offspring produced by each reproducing member 
C)  the time span before offspring reach reproductive maturity 
D)  the ratio of males to females 
E)  the presence of competing species in the same habitat

Exam 23: Ecosystems and Populations

The type of location where a species lives is its ________.

A biogeochemical cycle involves the cycling of a chemical element between the biomass, exchange pool, and ________.

During photosynthesis, high energy carbohydrates are produced at the end of

A population is comprised of one or more species of organisms that may interact but do not interbreed.

The introduction of invasive species may increase the environmental resistance for a native species.

Which one of the following is represented by the calculation: (number of births - number of deaths)/total population?

The process of converting nitrogen gas to ammonium is called

Chemicals that make up living organisms are constantly recycled between organisms and the Earth.

The biosphere is so large that, unlike the case of the more simple ecosystems, it is impossible to disturb the balances that exist in this ecosystem.

The size of a population of a given species that can be indefinitely sustained by an ecosystem is its ________.

Major end products from photosynthesis include oxygen gas and simple high energy carbohydrates.

Populations of species that occupy the same geographic area and interact with each other are collectively called a(n)

Woodpeckers, insects, bacteria, hawks, and raccoons are found to reside in the same forest. Studies of the interactions between these organisms would be at the level of a

A scientist is studying the flow of energy into and out of a rain forest as well as the usage of energy by the organisms that inhabit that area. This study would be at the level of a(n)

Which one of the following statements accurately reflects the nature of climax communities?

The Black Death that devastated the human population of portions of Europe during the 1300s represents a

Which one of the following statements is TRUE regarding the nitrogen cycle?

The majority of precipitation reaching land is derived from evaporation of oceanic waters.

A species' biotic potential is intrinsically determined by all of the following EXCEPT which one?

Human Biology, Science, and Society

The Chemistry of Living Things

Structure and Function of Cells

From Cells to Organ Systems

The Skeletal System

The Muscular System

Blood

Heart and Blood Vessels

The Immune System and Mechanisms of Defense

The Respiratory System: Exchange of Gases

The Nervous System: Integration and Control

Sensory Mechanisms

The Endocrine System

The Digestive System and Nutrition

The Urinary System

Reproductive Systems

Cell Reproduction and Differentiation

Cancer: Uncontrolled Cell Division and Differentiation

Genetics and Inheritance

DNA Technology and Genetic Engineering

Development and Aging

Evolution and the Origins of Life

Human Impacts, Biodiversity, and Environmental Issues

Filters