Question 1

Which is a self-regulating association of living plants and animals and their nonliving physical environment?

Accepted Answer

A) Ecosystem. 
B) Ecotone. 
C) Community. 
D) Niche. 
A) Ecosystem. 
B) Ecotone. 
C) Community. 
D) Niche.

Question 2

Of the total energy intercepted at Earth's surface and available for work,about 25% is fixed by photosynthesis as carbohydrates in plants.

Accepted Answer

A) True 
 B)False

Question 3

Which is the ability of an ecosystem to recover quickly from a disturbance and return to its original state?

Accepted Answer

A) Resilience. 
B) Vicariance. 
C) Punctuated equilibrium. 
D) Succession. 
A) Resilience. 
B) Vicariance. 
C) Punctuated equilibrium. 
D) Succession.

Question 4

A study of the dietary requirements of African bush elephants (Loxodonta africana)in a savanna environment,and the role the elephants play in that environment,would be an example of a topic studied in which of the following?

Accepted Answer

A) Biogeography. 
B) Ecology. 
C) Pedology. 
D) Plant biology. 
A) Biogeography. 
B) Ecology. 
C) Pedology. 
D) Plant biology.

Question 5

Which of the following would not be a limiting factor for a plant species?

Accepted Answer

A) Soil phosphorus content. 
B) Daily precipitation values. 
C) Number of predators. 
D) Days below freezing. 
A) Soil phosphorus content. 
B) Daily precipitation values. 
C) Number of predators. 
D) Days below freezing.

Question 6

Consider the ecology of the region in which you live.Which organisms are the primary producers,the primary consumers,the secondary consumers,and tertiary consumers.

Accepted Answer

Answers will vary.Students answers shoul

Question 7

Which is the first species to colonize previously disturbed or damaged ecosystems?

Accepted Answer

A) Sere. 
B) Pioneer community. 
C) Successor. 
D) Establishment. 
A) Sere. 
B) Pioneer community. 
C) Successor. 
D) Establishment.

Question 8

What is biodiversity? How does biodiversity arise.Why is biodiversity important.

Accepted Answer

In the simplest terms,biodiversity is th

Question 9

Which of the following best describes nitrogen?

Accepted Answer

A) The atmosphere contains about 28% nitrogen. 
B) Bacterial action is key to the nitrogen cycle. 
C) Atmospheric nitrogen is accessible directly to most organisms. 
D) Nitrogen is unimportant to organisms. 
A) The atmosphere contains about 28% nitrogen. 
B) Bacterial action is key to the nitrogen cycle. 
C) Atmospheric nitrogen is accessible directly to most organisms. 
D) Nitrogen is unimportant to organisms.

Question 10

The term ecology literally means "the study of the household."

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is the correct order of lake succession,from lowest to highest nutrient levels?

Accepted Answer

A) Oligotrophic,mesotrophic,eutrophic. 
B) Eutrophic,oligotrophic,mesotrophic. 
C) Mesotrophic,eutrophic,oligotrophic. 
D) Oligotrophic,eutrophic,mesotrophic. 
A) Oligotrophic,mesotrophic,eutrophic. 
B) Eutrophic,oligotrophic,mesotrophic. 
C) Mesotrophic,eutrophic,oligotrophic. 
D) Oligotrophic,eutrophic,mesotrophic.

Question 12

According to the competitive exclusion principle,no two species can occupy the same niche.

Accepted Answer

A) True 
 B)False

Question 13

When a random occurrence produces altered genetic material and inserts new traits into the inherited stream,which has occurred?

Accepted Answer

A) Lamarckian evolution. 
B) Punctuated equilibrium. 
C) Mutation. 
D) Vicariance. 
A) Lamarckian evolution. 
B) Punctuated equilibrium. 
C) Mutation. 
D) Vicariance.

Question 14

Which is the environment in which an organism resides or is biologically adapted to live?

Accepted Answer

A) Ecotone. 
B) Habitat. 
C) Community. 
D) Niche. 
A) Ecotone. 
B) Habitat. 
C) Community. 
D) Niche.

Question 15

Biogeography is the study of the spatial distribution of plants,whereas zoogeography is the study of the spatial distribution of animals.

Accepted Answer

A) True 
 B)False

Question 16

Communities are not static,rather they undergo changes over time due to various natural disturbances.

Accepted Answer

A) True 
 B)False

Question 17

Some harmful chemicals that are long-lived,stable,and soluble in fatty tissues become increasingly concentrated at each higher trophic level.

Accepted Answer

A) True 
 B)False

Question 18

The snail kite (Rostrhamus sociabilis)is a specialist that feeds on only one specific type of snail.By comparison,the Mallard Duck (Anas platyrhynchos)is a generalist that feeds on diverse food sources.Whereas the snail kite has a very limited range,the Mallard Duck has a very broad range.The snail kite's diet is an example of which of the following?

Accepted Answer

A) Limiting factor. 
B) Range of tolerance. 
C) Ecological niche. 
D) Habitat. 
A) Limiting factor. 
B) Range of tolerance. 
C) Ecological niche. 
D) Habitat.

Question 19

Which is a complex network of interconnected food chains with multidirectional branches?

Accepted Answer

A) Food web. 
B) Niche order. 
C) Trophic level. 
D) Food pyramid. 
A) Food web. 
B) Niche order. 
C) Trophic level. 
D) Food pyramid.

Question 20

Together,three natural elements make up 99% of Earth's biomass.Which of the following lists those three elements?

Accepted Answer

A) Oxygen (O),hydrogen (H),nitrogen (N). 
B) Hydrogen (H),nitrogen (N),carbon (
C) . 
C) Nitrogen (N),carbon (
C) ,oxygen (O). 
D) Carbon (
C) ,oxygen (O),hydrogen (H). 
A) Oxygen (O),hydrogen (H),nitrogen (N). 
B) Hydrogen (H),nitrogen (N),carbon (
C) . 
C) Nitrogen (N),carbon (
C) ,oxygen (O). 
D) Carbon (
C) ,oxygen (O),hydrogen (H).

Which is a self-regulating association of living plants and animals and their nonliving physical environment?

Of the total energy intercepted at Earth's surface and available for work,about 25% is fixed by photosynthesis as carbohydrates in plants.

Which is the ability of an ecosystem to recover quickly from a disturbance and return to its original state?

A study of the dietary requirements of African bush elephants (Loxodonta africana)in a savanna environment,and the role the elephants play in that environment,would be an example of a topic studied in which of the following?

Which of the following would not be a limiting factor for a plant species?

Consider the ecology of the region in which you live.Which organisms are the primary producers,the primary consumers,the secondary consumers,and tertiary consumers.

Which is the first species to colonize previously disturbed or damaged ecosystems?

What is biodiversity? How does biodiversity arise.Why is biodiversity important.

Which of the following best describes nitrogen?

The term ecology literally means "the study of the household."

Which of the following is the correct order of lake succession,from lowest to highest nutrient levels?

According to the competitive exclusion principle,no two species can occupy the same niche.

When a random occurrence produces altered genetic material and inserts new traits into the inherited stream,which has occurred?

Which is the environment in which an organism resides or is biologically adapted to live?

Biogeography is the study of the spatial distribution of plants,whereas zoogeography is the study of the spatial distribution of animals.

Communities are not static,rather they undergo changes over time due to various natural disturbances.

Some harmful chemicals that are long-lived,stable,and soluble in fatty tissues become increasingly concentrated at each higher trophic level.

Which is a complex network of interconnected food chains with multidirectional branches?

Together,three natural elements make up 99% of Earth's biomass.Which of the following lists those three elements?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Terrestrial Biomes

Filters

Exam 19: Ecosystem Essentials

Which is a self-regulating association of living plants and animals and their nonliving physical environment?

Of the total energy intercepted at Earth's surface and available for work,about 25% is fixed by photosynthesis as carbohydrates in plants.

Which is the ability of an ecosystem to recover quickly from a disturbance and return to its original state?

A study of the dietary requirements of African bush elephants (Loxodonta africana)in a savanna environment,and the role the elephants play in that environment,would be an example of a topic studied in which of the following?

Which of the following would not be a limiting factor for a plant species?

Consider the ecology of the region in which you live.Which organisms are the primary producers,the primary consumers,the secondary consumers,and tertiary consumers.

Which is the first species to colonize previously disturbed or damaged ecosystems?

What is biodiversity? How does biodiversity arise.Why is biodiversity important.

Which of the following best describes nitrogen?

The term ecology literally means "the study of the household."

Which of the following is the correct order of lake succession,from lowest to highest nutrient levels?

According to the competitive exclusion principle,no two species can occupy the same niche.

When a random occurrence produces altered genetic material and inserts new traits into the inherited stream,which has occurred?

Which is the environment in which an organism resides or is biologically adapted to live?

Biogeography is the study of the spatial distribution of plants,whereas zoogeography is the study of the spatial distribution of animals.

Communities are not static,rather they undergo changes over time due to various natural disturbances.

Some harmful chemicals that are long-lived,stable,and soluble in fatty tissues become increasingly concentrated at each higher trophic level.

Which is a complex network of interconnected food chains with multidirectional branches?

Together,three natural elements make up 99% of Earth's biomass.Which of the following lists those three elements?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Terrestrial Biomes

Filters