Question 1

Lichen, which is a composite organism consisting of an alga and fungus, is an example of mutualism.

Accepted Answer

A) True 
 B)False

Question 2

An ecological niche is essentially the same thing as a habitat.

Accepted Answer

A) True 
 B)False

Question 3

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 preadors 
D)  days below freezing 
A)  soil phosphorus content 
B)  daily precipitation values 
C)  number of preadors 
D)  days below freezing

Question 4

In which of the following areas would one tend to find the highest net primary productivity?

Accepted Answer

A)  northern Brazil 
B)  central Australia 
C)  western Canada 
D)  Euroasia 
A)  northern Brazil 
B)  central Australia 
C)  western Canada 
D)  Euroasia

Question 5

Lichen are made up of algae and fungi living together. In this relationship, the alga is the produce and for source for the fungus and the fungus provides structure and physical support for the alga. This is an example of which symbiotic relationship?

Accepted Answer

A)  parasitism 
B)  mutualism 
C)  commensalism 
D)  amensalism 
A)  parasitism 
B)  mutualism 
C)  commensalism 
D)  amensalism

Question 6

The first species to colonize previously disturbed or damaged ecosystems are called a(n)

Accepted Answer

A)  sere. 
B)  pioneer community. 
C)  successor. 
D)  establishment. 
A)  sere. 
B)  pioneer community. 
C)  successor. 
D)  establishment.

Question 7

Habitat loss, pollution, resource exploitation, climate change, and introduction of non-native species are among the biggest threats to biodiversity.

Accepted Answer

A) True 
 B)False

Question 8

Contemporary biogeographic and ecological thinking posits that disturbance constantly disrupts ecosystems and a community may never reach the stage of climax community.

Accepted Answer

A) True 
 B)False

Question 9

On average, algal beds and reefs have higher net primary productivity than tropical rain forests.

Accepted Answer

A) True 
 B)False

Question 10

Photosynthesis involves

Accepted Answer

A)  the release of stored carbon dioxide in a process using sunlight. 
B)  the union of carbon dioxide and hydrogen in the presence of sunlight, and the release of oxygen. 
C)  a process known as respiration. 
D)  important reactions within the stems and roots of plants. 
A)  the release of stored carbon dioxide in a process using sunlight. 
B)  the union of carbon dioxide and hydrogen in the presence of sunlight, and the release of oxygen. 
C)  a process known as respiration. 
D)  important reactions within the stems and roots of plants.

Question 11

Greater biological diversity in an ecosystem leads to greater long-term stability and productivity.

Accepted Answer

A) True 
 B)False

Question 12

Today, there are over 270,000 plant species with conductive tissues and material flow systems known as

Accepted Answer

A)  blue-green algae. 
B)  cyanobacteria. 
C)  xeriphytes. 
D)  vascular plants. 
A)  blue-green algae. 
B)  cyanobacteria. 
C)  xeriphytes. 
D)  vascular plants.

Question 13

The ability of an ecosystem to recover quickly from a disturbance and return to its original state is known as

Accepted Answer

A)  resilience. 
B)  vicariance. 
C)  punctuated equilibrium. 
D)  succession. 
A)  resilience. 
B)  vicariance. 
C)  punctuated equilibrium. 
D)  succession.

Question 14

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 15

Atmospheric nitrogen is readily available to living organisms.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following has the highest number of known species?

Accepted Answer

A)  plants 
B)  insects 
C)  chordates 
D)  bacteria 
A)  plants 
B)  insects 
C)  chordates 
D)  bacteria

Question 17

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

Accepted Answer

In the simplest terms, biodiversity is t

Question 18

The Earth's biosphere

Accepted Answer

A)  consists of only terrestrial organisms, while the hydrosphere includes aquatic and marine organisms. 
B)  only includes the biotic components of an ecosystem, with the abiotic components being considered part of the lithosphere, hydrosphere, or atmosphere, respectively. 
C)  is more a theoretical construct than an observable sphere of study. 
D)  extends from the ocean floor to an altitude of approximately 8 km (5 mi) into the atmosphere. 
A)  consists of only terrestrial organisms, while the hydrosphere includes aquatic and marine organisms. 
B)  only includes the biotic components of an ecosystem, with the abiotic components being considered part of the lithosphere, hydrosphere, or atmosphere, respectively. 
C)  is more a theoretical construct than an observable sphere of study. 
D)  extends from the ocean floor to an altitude of approximately 8 km (5 mi) into the atmosphere.

Question 19

________ refers to the biotic and abiotic characteristics in the environment that determine species distribution.

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 20

An organism capable of synthesizing its own food and inorganic substances using sunlight or chemical energy is known as a(n)

Accepted Answer

A)  heterotroph. 
B)  autotroph. 
C)  primary consumer. 
D)  secondary consumer. 
A)  heterotroph. 
B)  autotroph. 
C)  primary consumer. 
D)  secondary consumer.

Lichen, which is a composite organism consisting of an alga and fungus, is an example of mutualism.

An ecological niche is essentially the same thing as a habitat.

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

In which of the following areas would one tend to find the highest net primary productivity?

Lichen are made up of algae and fungi living together. In this relationship, the alga is the produce and for source for the fungus and the fungus provides structure and physical support for the alga. This is an example of which symbiotic relationship?

The first species to colonize previously disturbed or damaged ecosystems are called a(n)

Habitat loss, pollution, resource exploitation, climate change, and introduction of non-native species are among the biggest threats to biodiversity.

Contemporary biogeographic and ecological thinking posits that disturbance constantly disrupts ecosystems and a community may never reach the stage of climax community.

On average, algal beds and reefs have higher net primary productivity than tropical rain forests.

Photosynthesis involves

Greater biological diversity in an ecosystem leads to greater long-term stability and productivity.

Today, there are over 270,000 plant species with conductive tissues and material flow systems known as

The ability of an ecosystem to recover quickly from a disturbance and return to its original state is known as

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

Atmospheric nitrogen is readily available to living organisms.

Which of the following has the highest number of known species?

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

The Earth's biosphere

________ refers to the biotic and abiotic characteristics in the environment that determine species distribution.

An organism capable of synthesizing its own food and inorganic substances using sunlight or chemical energy is known as a(n)

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 and Landforms

The Oceans, Coastal Processes, and Wind Processes

Glacial and Periglacial Processes and Landforms

The Geography of Soils

Terrestrial Biomes

Filters

Exam 19: Ecosystem Essentials

Lichen, which is a composite organism consisting of an alga and fungus, is an example of mutualism.

An ecological niche is essentially the same thing as a habitat.

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

In which of the following areas would one tend to find the highest net primary productivity?

Lichen are made up of algae and fungi living together. In this relationship, the alga is the produce and for source for the fungus and the fungus provides structure and physical support for the alga. This is an example of which symbiotic relationship?

The first species to colonize previously disturbed or damaged ecosystems are called a(n)

Habitat loss, pollution, resource exploitation, climate change, and introduction of non-native species are among the biggest threats to biodiversity.

Contemporary biogeographic and ecological thinking posits that disturbance constantly disrupts ecosystems and a community may never reach the stage of climax community.

On average, algal beds and reefs have higher net primary productivity than tropical rain forests.

Photosynthesis involves

Greater biological diversity in an ecosystem leads to greater long-term stability and productivity.

Today, there are over 270,000 plant species with conductive tissues and material flow systems known as

The ability of an ecosystem to recover quickly from a disturbance and return to its original state is known as

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

Atmospheric nitrogen is readily available to living organisms.

Which of the following has the highest number of known species?

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

The Earth's biosphere

________ refers to the biotic and abiotic characteristics in the environment that determine species distribution.

An organism capable of synthesizing its own food and inorganic substances using sunlight or chemical energy is known as a(n)

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 and Landforms

The Oceans, Coastal Processes, and Wind Processes

Glacial and Periglacial Processes and Landforms

The Geography of Soils

Terrestrial Biomes

Filters