Question 1

Photosynthesis produces carbohydrates and oxygen.

Accepted Answer

A) True 
 B)False

Question 2

In the Rocky Mountains beavers build dams,which form ponds,which form meadows,which increases the diversity of habitats in the region.These facts best relate to the concept of

Accepted Answer

A) a food web. 
B) an ecological niche. 
C) a food pyramid. 
D) trophic structure. 
E) ecosystem. 
A) a food web. 
B) an ecological niche. 
C) a food pyramid. 
D) trophic structure. 
E) ecosystem.

Question 3

Ecosystems with higher biodiversity have higher stability,but lower productivity.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

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

Question 5

Long-lived,stable chemicals tend to concentrate in a food chain in a process known as biological amplification.

Accepted Answer

A) True 
 B)False

Question 6

A study of the dietary requirements of African elephants in a savanna environment,and the role the elephants play in that environment,would be an example of a topic studied in

Accepted Answer

A) biogeography. 
B) ecology. 
C) pedology. 
D) plant biology. 
E) geoarchaeology. 
A) biogeography. 
B) ecology. 
C) pedology. 
D) plant biology. 
E) geoarchaeology.

Question 7

Lichen is an example of

Accepted Answer

A) a complex plant. 
B) a complex animal. 
C) algae and fungus living together in a mutually beneficial arrangement. 
D) algae providing structure and support for parasitic fungus. 
E) opportunism. 
A) a complex plant. 
B) a complex animal. 
C) algae and fungus living together in a mutually beneficial arrangement. 
D) algae providing structure and support for parasitic fungus. 
E) opportunism.

Question 8

The landscape on the fresh lava flows from the Kileua volcano

Accepted Answer

A) is recovering through secondary succession. 
B) has formed a pioneer community as succession begins. 
C) is now a climax community. 
D) will never recover. 
A) is recovering through secondary succession. 
B) has formed a pioneer community as succession begins. 
C) is now a climax community. 
D) will never recover.

Question 9

In the tropical rain forests of South America,a species of frog lives its life cycle in the tops of trees-specifically in small "ponds" of water caught in large leaves.The frogs,and the animals they interact with,constitute a(n)________,and the rain forest itself-with all its biotic and abiotic components-constitutes a(n)________.

Accepted Answer

A) habitat community 
B) community ecosystem 
C) ecosystem niche 
D) ecosystem community 
E) habitat niche 
A) habitat community 
B) community ecosystem 
C) ecosystem niche 
D) ecosystem community 
E) habitat niche

Question 10

A lake that has undergone eutrophication would be

Accepted Answer

A) clear and low in nutrients. 
B) clear and high in nutrients. 
C) low in transparency and low in nutrients. 
D) low in transparency and high in nutrients. 
A) clear and low in nutrients. 
B) clear and high in nutrients. 
C) low in transparency and low in nutrients. 
D) low in transparency and high in nutrients.

Question 11

In the final stage of eutrophication

Accepted Answer

A) nutrient concentration increases to a maximum. 
B) photosynthesis extends throughout the water column. 
C) production exceeds respiration. 
D) oxygen supply meets oxygen demand 
A) nutrient concentration increases to a maximum. 
B) photosynthesis extends throughout the water column. 
C) production exceeds respiration. 
D) oxygen supply meets oxygen demand

Question 12

The tendency for birth and death rates to balance and the composition of species to remain stable is referred to as

Accepted Answer

A) resilience. 
B) diversity. 
C) species variability. 
D) inertial stability. 
E) speciation. 
A) resilience. 
B) diversity. 
C) species variability. 
D) inertial stability. 
E) speciation.

Question 13

The study of the interrelationships between organisms and their environment is called

Accepted Answer

A) biology. 
B) ecology. 
C) pedology. 
D) biogeography. 
E) geology. 
A) biology. 
B) ecology. 
C) pedology. 
D) biogeography. 
E) geology.

Question 14

Ticks feed on cows,cow birds pick off ticks from the backs of cows.Thus,the birds benefit the cow by removing harmful bugs,and the cow provides a food source location for the bird.The relationship between the ticks and the cow is ________,and that between the cow and the bird is ________.

Accepted Answer

A) symbiotic parasitic 
B) parasitic symbiotic 
C) symbiotic mutualistic 
D) mutualistic symbiotic 
E) parasitic mutualistic 
A) symbiotic parasitic 
B) parasitic symbiotic 
C) symbiotic mutualistic 
D) mutualistic symbiotic 
E) parasitic mutualistic

Question 15

Chlorophyll ________ green light.

Accepted Answer

A) reflects 
B) absorbs 
C) transmits 
D) uses 
E) refracts 
A) reflects 
B) absorbs 
C) transmits 
D) uses 
E) refracts

Question 16

The break-even point between the production and consumption of organic material within a plant is termed the

Accepted Answer

A) compensation point. 
B) net leaf rate. 
C) primary productivity. 
D) photosynthetic status. 
E) growth rate. 
A) compensation point. 
B) net leaf rate. 
C) primary productivity. 
D) photosynthetic status. 
E) growth rate.

Question 17

Which of the following is true regarding photoperiod?

Accepted Answer

A) it is about 18 hours long every day of the year near the equator. 
B) it is 24 hours long for some parts of the year near the poles. 
C) the annual variation in photoperiod decreases with increasing latitude. 
D) the annual variation in photoperiod increases with increasing altitude. 
E) it is about 12 hours long every day of the year for the globe. 
A) it is about 18 hours long every day of the year near the equator. 
B) it is 24 hours long for some parts of the year near the poles. 
C) the annual variation in photoperiod decreases with increasing latitude. 
D) the annual variation in photoperiod increases with increasing altitude. 
E) it is about 12 hours long every day of the year for the globe.

Question 18

Write an essay describing typical ecological succession in a lake.

Accepted Answer

Ecological succession in a lake is a pro

Question 19

Photosynthesis involves

Accepted Answer

A) the release of carbon dioxide in a process using sunlight. 
B) the union of carbon dioxide and water under the influence of sunlight,and the release of oxygen. 
C) a process known as respiration. 
D) important reactions within the stems and roots of plants. 
E) the union of carbon dioxide and oxygen under the influence of sunlight to produce water. 
A) the release of carbon dioxide in a process using sunlight. 
B) the union of carbon dioxide and water under the influence of sunlight,and the release of oxygen. 
C) a process known as respiration. 
D) important reactions within the stems and roots of plants. 
E) the union of carbon dioxide and oxygen under the influence of sunlight to produce water.

Question 20

Ecosystems are generally structured in a complex network of interconnected feeding patterns in which consumers participate at several different points.This pattern is called a

Accepted Answer

A) food web. 
B) niche order. 
C) trophic place. 
D) food chain. 
E) food pyramid. 
A) food web. 
B) niche order. 
C) trophic place. 
D) food chain. 
E) food pyramid.

Photosynthesis produces carbohydrates and oxygen.

In the Rocky Mountains beavers build dams,which form ponds,which form meadows,which increases the diversity of habitats in the region.These facts best relate to the concept of

Ecosystems with higher biodiversity have higher stability,but lower productivity.

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

Long-lived,stable chemicals tend to concentrate in a food chain in a process known as biological amplification.

A study of the dietary requirements of African elephants in a savanna environment,and the role the elephants play in that environment,would be an example of a topic studied in

Lichen is an example of

The landscape on the fresh lava flows from the Kileua volcano

A lake that has undergone eutrophication would be

In the final stage of eutrophication

The tendency for birth and death rates to balance and the composition of species to remain stable is referred to as

The study of the interrelationships between organisms and their environment is called

Ticks feed on cows,cow birds pick off ticks from the backs of cows.Thus,the birds benefit the cow by removing harmful bugs,and the cow provides a food source location for the bird.The relationship between the ticks and the cow is ,and that between the cow and the bird is .

Chlorophyll ________ green light.

The break-even point between the production and consumption of organic material within a plant is termed the

Which of the following is true regarding photoperiod?

Write an essay describing typical ecological succession in a lake.

Photosynthesis involves

Ecosystems are generally structured in a complex network of interconnected feeding patterns in which consumers participate at several different points.This pattern is called a

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth's Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Climate Systems and Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems and Landforms

Eolian Processes and Arid Landscapes

The Oceans, Coastal Processes, and Landforms

Glacial and Periglacial Processes and Landforms

The Geography of Soils

Terrestrial Biomes

Earth and the Human Denominator

Filters

Exam 19: Ecosystem Essentials

Photosynthesis produces carbohydrates and oxygen.

In the Rocky Mountains beavers build dams,which form ponds,which form meadows,which increases the diversity of habitats in the region.These facts best relate to the concept of

Ecosystems with higher biodiversity have higher stability,but lower productivity.

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

Long-lived,stable chemicals tend to concentrate in a food chain in a process known as biological amplification.

A study of the dietary requirements of African elephants in a savanna environment,and the role the elephants play in that environment,would be an example of a topic studied in

Lichen is an example of

The landscape on the fresh lava flows from the Kileua volcano

A lake that has undergone eutrophication would be

In the final stage of eutrophication

The tendency for birth and death rates to balance and the composition of species to remain stable is referred to as

The study of the interrelationships between organisms and their environment is called

Ticks feed on cows,cow birds pick off ticks from the backs of cows.Thus,the birds benefit the cow by removing harmful bugs,and the cow provides a food source location for the bird.The relationship between the ticks and the cow is ________,and that between the cow and the bird is ________.

Chlorophyll ________ green light.

The break-even point between the production and consumption of organic material within a plant is termed the

Which of the following is true regarding photoperiod?

Write an essay describing typical ecological succession in a lake.

Photosynthesis involves

Ecosystems are generally structured in a complex network of interconnected feeding patterns in which consumers participate at several different points.This pattern is called a

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth's Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Climate Systems and Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems and Landforms

Eolian Processes and Arid Landscapes

The Oceans, Coastal Processes, and Landforms

Glacial and Periglacial Processes and Landforms

The Geography of Soils

Terrestrial Biomes

Earth and the Human Denominator

Filters

Ticks feed on cows,cow birds pick off ticks from the backs of cows.Thus,the birds benefit the cow by removing harmful bugs,and the cow provides a food source location for the bird.The relationship between the ticks and the cow is ,and that between the cow and the bird is .