Question 1

Why do some nonnative species spread so quickly and inflict so much devastation when introduced to a new area?

Accepted Answer

The lack of natural

Question 2

How does an increase in atmospheric greenhouse gases increase global temperatures?

Accepted Answer

A) By preventing some of the heat from escaping the planet's surface 
B) By decreasing the ozone layer in the atmosphere 
C) By increasing the amount of heat from the sun that reaches the planet's surface 
D) By reacting with each other 
A) By preventing some of the heat from escaping the planet's surface 
B) By decreasing the ozone layer in the atmosphere 
C) By increasing the amount of heat from the sun that reaches the planet's surface 
D) By reacting with each other

Question 3

The use of multiple forms of pest control including biological, chemical, and the planting of pest-resistant crops is a strategy commonly called ________.

Accepted Answer

A) intermediate species control 
B) integrated pest management 
C) multilevel systems approach 
D) restoration ecology 
A) intermediate species control 
B) integrated pest management 
C) multilevel systems approach 
D) restoration ecology

Question 4

Which principle states that no two species competing for the exact same resources can coexist?

Accepted Answer

A) Complex community network principle 
B) Resource partitioning principle 
C) Dominance species principle 
D) Competitive exclusion principle 
A) Complex community network principle 
B) Resource partitioning principle 
C) Dominance species principle 
D) Competitive exclusion principle

Question 5

Identify the biotic factor of an ecosystem among the following options.

Accepted Answer

A) Amount of nitrogen available for the moss to grow on cliffs 
B) Nesting spots on the edge of a cliff that birds can use 
C) Average wind forces that the cliffs withstand daily 
D) Amount of moss available to the consumers 
A) Amount of nitrogen available for the moss to grow on cliffs 
B) Nesting spots on the edge of a cliff that birds can use 
C) Average wind forces that the cliffs withstand daily 
D) Amount of moss available to the consumers

Question 6

What type of species, if removed from the community, could lead to the collapse of the entire community?

Accepted Answer

A) Invasive species 
B) Keystone species 
C) Indicator species 
D) Flagship species 
A) Invasive species 
B) Keystone species 
C) Indicator species 
D) Flagship species

Question 7

An invasive species is a species that ________.

Accepted Answer

A) spreads rapidly outside its native range and causes damage 
B) spreads rapidly within its native range and causes damage 
C) spreads rapidly outside its native range and does not cause damage 
D) spreads rapidly within, but not outside, its native range 
A) spreads rapidly outside its native range and causes damage 
B) spreads rapidly within its native range and causes damage 
C) spreads rapidly outside its native range and does not cause damage 
D) spreads rapidly within, but not outside, its native range

Question 8

Although freshwater biomes cover less than 1% of the Earth's surface, they are important because ________.

Accepted Answer

A) we depend on them for drinking water 
B) they are home to lots of species 
C) they are the source of our irrigation for agriculture 
D) All of the above are reasons why freshwater biomes are important. 
A) we depend on them for drinking water 
B) they are home to lots of species 
C) they are the source of our irrigation for agriculture 
D) All of the above are reasons why freshwater biomes are important.

Question 9

Plants rely on pollinators to reproduce, while pollinators rely on plants to provide nutrients.This is an example of ________.

Accepted Answer

A) parasitism 
B) mutualism 
C) predator-prey 
D) commensalism 
A) parasitism 
B) mutualism 
C) predator-prey 
D) commensalism

Question 10

Imagine you were the manager of a national park with cheetahs.The cheetahs feed primarily on gazelles, while the gazelles eat grass.It takes an acre of grassland to feed one gazelle, and it takes ten gazelles to feed one cheetah.How much grassland do you need to support a population of 10 cheetahs?

Accepted Answer

A) 500 acres 
B) 200 acres 
C) 100 acres 
D) 10 acres 
A) 500 acres 
B) 200 acres 
C) 100 acres 
D) 10 acres

Question 11

Imagine you were the manager of a national park with cheetahs.The cheetahs feed primarily on gazelles, while the gazelles eat grass.It takes an acre of grassland to feed one gazelle, and it takes ten gazelles to feed one cheetah.You have a maximum of ten cheetahs when the system is functioning optimally.You would like to increase the cheetah population because people pay money to see the cheetahs.How much grassland do you need to double the cheetah population supported by this grassland?

Accepted Answer

A) 500 acres 
B) 200 acres 
C) 100 acres 
D) 10 acres 
A) 500 acres 
B) 200 acres 
C) 100 acres 
D) 10 acres

Question 12

All ecosystems need energy.What is the originating source for most of the energy that powers ecosystems on this planet?

Accepted Answer

A) Geothermal energy 
B) Wind energy 
C) Solar energy 
D) Potential energy 
A) Geothermal energy 
B) Wind energy 
C) Solar energy 
D) Potential energy

Question 13

A community in ecology is defined as ________.

Accepted Answer

A) a population and its surrounding environment 
B) populations from multiple species interacting in the same place 
C) populations from multiple species interacting in the same place, and their surrounding environment 
D) living and nonliving things in one place 
A) a population and its surrounding environment 
B) populations from multiple species interacting in the same place 
C) populations from multiple species interacting in the same place, and their surrounding environment 
D) living and nonliving things in one place

Question 14

A biome characterized by warm, fairly dry climate that primarily contains grasses with scattered, isolated trees is a ________.

Accepted Answer

A) savanna 
B) chaparral 
C) tundra 
D) temperate grasslands 
A) savanna 
B) chaparral 
C) tundra 
D) temperate grasslands

Question 15

Which is the dominant greenhouse gas leading to global warming of the atmosphere?

Accepted Answer

A) CH4 
B) H2O 
C) NO2 
D) CO2 
A) CH4 
B) H2O 
C) NO2 
D) CO2

Question 16

-Which month was the wettest?

Accepted Answer

A) Month 19 
B) Month 16 
C) Month 22 
D) Month 15 
A) Month 19 
B) Month 16 
C) Month 22 
D) Month 15

Question 17

An age pyramid with a broad base that quickly slopes up to a narrow top would be indicative of ________.

Accepted Answer

A) an industrialized nation 
B) a developing nation 
C) a population with a high average age 
D) a population with a high survivorship of older adults 
A) an industrialized nation 
B) a developing nation 
C) a population with a high average age 
D) a population with a high survivorship of older adults

Question 18

Compare the flow of energy and the flow of nutrients in ecosystems.

Accepted Answer

A) Both function in the same way, as both energy and nutrients get recycled in ecosystems. 
B) Both function in the same way, as both energy and nutrients come in and out of ecosystems. 
C) Energy comes in and out of ecosystems, while nutrients are recycled within ecosystems. 
D) Energy is recycled within ecosystems, while nutrients come in and out of ecosystems. 
A) Both function in the same way, as both energy and nutrients get recycled in ecosystems. 
B) Both function in the same way, as both energy and nutrients come in and out of ecosystems. 
C) Energy comes in and out of ecosystems, while nutrients are recycled within ecosystems. 
D) Energy is recycled within ecosystems, while nutrients come in and out of ecosystems.

Question 19

All of the following are abiotic factors within an ecosystem except ________.

Accepted Answer

A) energy 
B) fire 
C) nutrients 
D) All of the above are abiotic factors. 
A) energy 
B) fire 
C) nutrients 
D) All of the above are abiotic factors.

Question 20

Ecology is best defined as the study of ________.

Accepted Answer

A) the relationships between parasites and their hosts 
B) the interactions between living organisms and their environments 
C) plant succession 
D) interactions between predator and prey populations 
A) the relationships between parasites and their hosts 
B) the interactions between living organisms and their environments 
C) plant succession 
D) interactions between predator and prey populations

Why do some nonnative species spread so quickly and inflict so much devastation when introduced to a new area?

How does an increase in atmospheric greenhouse gases increase global temperatures?

The use of multiple forms of pest control including biological, chemical, and the planting of pest-resistant crops is a strategy commonly called ________.

Which principle states that no two species competing for the exact same resources can coexist?

Identify the biotic factor of an ecosystem among the following options.

What type of species, if removed from the community, could lead to the collapse of the entire community?

An invasive species is a species that ________.

Although freshwater biomes cover less than 1% of the Earth's surface, they are important because ________.

Plants rely on pollinators to reproduce, while pollinators rely on plants to provide nutrients.This is an example of ________.

Imagine you were the manager of a national park with cheetahs.The cheetahs feed primarily on gazelles, while the gazelles eat grass.It takes an acre of grassland to feed one gazelle, and it takes ten gazelles to feed one cheetah.How much grassland do you need to support a population of 10 cheetahs?

All ecosystems need energy.What is the originating source for most of the energy that powers ecosystems on this planet?

A community in ecology is defined as ________.

A biome characterized by warm, fairly dry climate that primarily contains grasses with scattered, isolated trees is a ________.

Which is the dominant greenhouse gas leading to global warming of the atmosphere?

-Which month was the wettest?

An age pyramid with a broad base that quickly slopes up to a narrow top would be indicative of ________.

Compare the flow of energy and the flow of nutrients in ecosystems.

All of the following are abiotic factors within an ecosystem except ________.

Ecology is best defined as the study of ________.

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Biology The Core: Appendix

Filters

Exam 12: Ecology

Why do some nonnative species spread so quickly and inflict so much devastation when introduced to a new area?

How does an increase in atmospheric greenhouse gases increase global temperatures?

The use of multiple forms of pest control including biological, chemical, and the planting of pest-resistant crops is a strategy commonly called ________.

Which principle states that no two species competing for the exact same resources can coexist?

Identify the biotic factor of an ecosystem among the following options.

What type of species, if removed from the community, could lead to the collapse of the entire community?

An invasive species is a species that ________.

Although freshwater biomes cover less than 1% of the Earth's surface, they are important because ________.

Plants rely on pollinators to reproduce, while pollinators rely on plants to provide nutrients.This is an example of ________.

Imagine you were the manager of a national park with cheetahs.The cheetahs feed primarily on gazelles, while the gazelles eat grass.It takes an acre of grassland to feed one gazelle, and it takes ten gazelles to feed one cheetah.How much grassland do you need to support a population of 10 cheetahs?

All ecosystems need energy.What is the originating source for most of the energy that powers ecosystems on this planet?

A community in ecology is defined as ________.

A biome characterized by warm, fairly dry climate that primarily contains grasses with scattered, isolated trees is a ________.

Which is the dominant greenhouse gas leading to global warming of the atmosphere?

-Which month was the wettest?

An age pyramid with a broad base that quickly slopes up to a narrow top would be indicative of ________.

Compare the flow of energy and the flow of nutrients in ecosystems.

All of the following are abiotic factors within an ecosystem except ________.

Ecology is best defined as the study of ________.

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Biology The Core: Appendix

Filters