Question 1

Of the following,  ______________ would be most vulnerable to extinction.

Accepted Answer

A)  a mold that attacks corn in the field 
B)  an orchid endemic to a mountaintop forest where logging is occurring 
C)  a moth, brought to the United States for silk production, escaping into the wild and becoming established 
D)  a healthy plant, such as a pine tree, that completely dominates its native environment 
E)  a migratory flock of warblers stopping along its winter route to feed on local resources that are now gone and replaced by a suburb 
A)  a mold that attacks corn in the field 
B)  an orchid endemic to a mountaintop forest where logging is occurring 
C)  a moth, brought to the United States for silk production, escaping into the wild and becoming established 
D)  a healthy plant, such as a pine tree, that completely dominates its native environment 
E)  a migratory flock of warblers stopping along its winter route to feed on local resources that are now gone and replaced by a suburb

Question 2

One example of artificial selection is ______________

Accepted Answer

A)  pet dogs that have gone wild, mate with coyotes, and live in packs 
B)  crossing a lion and a tiger to get a sterile animal called a liger 
C)  humans placing a gene for human insulin into a flower 
D)  the process of allopatric speciation 
E)  broccoli, cauliflower, cabbage, and brussels sprouts bred from Brassica oleracea 
A)  pet dogs that have gone wild, mate with coyotes, and live in packs 
B)  crossing a lion and a tiger to get a sterile animal called a liger 
C)  humans placing a gene for human insulin into a flower 
D)  the process of allopatric speciation 
E)  broccoli, cauliflower, cabbage, and brussels sprouts bred from Brassica oleracea

Question 3

An S-shaped population growth curve best describes ______________

Accepted Answer

A)  logistic growth 
B)  unlimited growth 
C)  slow and constantly changing growth 
D)  exponential growth 
E)  rapid and steady rate growth 
A)  logistic growth 
B)  unlimited growth 
C)  slow and constantly changing growth 
D)  exponential growth 
E)  rapid and steady rate growth

Question 4

High population density can ______________

Accepted Answer

A)  decrease the use of resources 
B)  decrease competition 
C)  increase the incidence of disease transmission and food scarcity 
D)  hinder organisms from finding mates 
E)  decrease biodiversity within a species 
A)  decrease the use of resources 
B)  decrease competition 
C)  increase the incidence of disease transmission and food scarcity 
D)  hinder organisms from finding mates 
E)  decrease biodiversity within a species

Question 5

Choose the item that best matches each item in the following:
-Specific environment in which an organism lives

Accepted Answer

A) population density 
B) habitat 
C) environmental cooperation 
D) community 
E) niche
F)environmental resistance
G)biotic potential
H)ecosystems
I)r-selected
J)carrying capacity
K)population
L)endemic 
A) population density 
B) habitat 
C) environmental cooperation 
D) community 
E) niche
F)environmental resistance
G)biotic potential
H)ecosystems
I)r-selected
J)carrying capacity
K)population
L)endemic

Question 6

Read the following scenario and answer the question below.
Between 1907 and 1923, cattle grazing in the Kaibab National forest in Arizona was greatly reduced, deer hunting was eliminated, and predators were killed. Over 600 cougars, 11 wolves (most had already been killed in the 1800s), and 3000 coyotes were trapped or shot. In response, the deer herd began to increase. By 1915, the deer were estimated at 25,000; by 1920 at 50,000; and by 1923 at approximately 100,000.
-What is going to happen to the area resources for deer after 1923?

Accepted Answer

A)  The deer herd continues to increase, so the resources will continue to be damaged. 
B)  The deer herd will have leveled off to a steady state, but the resources will continue to be damaged. 
C)  The deer herd will have leveled off to a steady state, so the resources will recover. 
D)  The deer herd will have begun decreasing, so the resources will recover. 
E)  As the deer switch to the forage previously used by cattle, the resources will recover. 
A)  The deer herd continues to increase, so the resources will continue to be damaged. 
B)  The deer herd will have leveled off to a steady state, but the resources will continue to be damaged. 
C)  The deer herd will have leveled off to a steady state, so the resources will recover. 
D)  The deer herd will have begun decreasing, so the resources will recover. 
E)  As the deer switch to the forage previously used by cattle, the resources will recover.

Question 7

In ecology, a ______________ is made up of interacting populations of different species that inhabit the same area.

Accepted Answer

A)  guild 
B)  ecosystem 
C)  biome 
D)  community 
E)  population 
A)  guild 
B)  ecosystem 
C)  biome 
D)  community 
E)  population

Question 8

Read the following scenario and answer the question below.
Between 1907 and 1923, cattle grazing in the Kaibab National forest in Arizona was greatly reduced, deer hunting was eliminated, and predators were killed. Over 600 cougars, 11 wolves (most had already been killed in the 1800s), and 3000 coyotes were trapped or shot. In response, the deer herd began to increase. By 1915, the deer were estimated at 25,000; by 1920 at 50,000; and by 1923 at approximately 100,000.
-The initial population of Kaibab deer in 1906 was about 4000. In an area of about 800,000 acres, this works out to an average density of one deer per 200 acres. The density in 1923 is .

Accepted Answer

A)  one deer per 80 acres 
B)  one deer per 8 acres 
C)  one deer per 0.8 acres 
D)  one deer per 20 acres 
E)  one deer per 800 acres 
A)  one deer per 80 acres 
B)  one deer per 8 acres 
C)  one deer per 0.8 acres 
D)  one deer per 20 acres 
E)  one deer per 800 acres

Question 9

Endemic species ______________

Accepted Answer

A)  have high rates of mutations that lead to large numbers of offspring species 
B)  are invasive species that cause extinction 
C)  are found only in one place on the planet 
D)  cause disease 
E)  are generalist organisms 
A)  have high rates of mutations that lead to large numbers of offspring species 
B)  are invasive species that cause extinction 
C)  are found only in one place on the planet 
D)  cause disease 
E)  are generalist organisms

Question 10

Differentiate between exponential and logistic growth curves. Give examples of the conditions under which each would occur.

Accepted Answer

Exponential growth (a J-shaped curve) oc

Question 11

Population distribution describes ______________

Accepted Answer

A)  placement of a species within a countryʹs boundaries 
B)  spatial arrangement of multiple species within a particular area 
C)  spatial arrangement of individuals of a single species within a particular area or ecosystem 
D)  placement of a species around the globe 
E)  how near or far away individuals in a population are from a resource, such as water 
A)  placement of a species within a countryʹs boundaries 
B)  spatial arrangement of multiple species within a particular area 
C)  spatial arrangement of individuals of a single species within a particular area or ecosystem 
D)  placement of a species around the globe 
E)  how near or far away individuals in a population are from a resource, such as water

Question 12

The niche of a species is the functional role of that species in the community that it belongs to. Species that have narrow niches (have very specific resource requirements) are said to be ______________ , while species that have broad niches (able to use a wide array of resources) are known as ______________.

Accepted Answer

A)  Type 2 species; Type 3 species 
B)  r-selected species; K-selected species 
C)  generalists; specialists 
D)  widespread; restricted 
E)  specialists; generalists 
A)  Type 2 species; Type 3 species 
B)  r-selected species; K-selected species 
C)  generalists; specialists 
D)  widespread; restricted 
E)  specialists; generalists

Of the following, ______________ would be most vulnerable to extinction.

One example of artificial selection is ______________

An S-shaped population growth curve best describes ______________

High population density can ______________

Choose the item that best matches each item in the following: -Specific environment in which an organism lives

In ecology, a ______________ is made up of interacting populations of different species that inhabit the same area.

Endemic species ______________

Differentiate between exponential and logistic growth curves. Give examples of the conditions under which each would occur.

Population distribution describes ______________

The niche of a species is the functional role of that species in the community that it belongs to. Species that have narrow niches (have very specific resource requirements) are said to be , while species that have broad niches (able to use a wide array of resources) are known as .

Science and Sustainability: an Introduction to Environmental Science

Environmental Systems: Matter, Energy, and Ecosystems

Species Interactions and Community Ecology

Economics, Policy, and Sustainable Development

Human Population

Soil, Agriculture, and the Future of Food

Biodiversity and Conservation Biology

Forests, Forest Management, and Protected Areas

Environmental Health and Toxicology

Geology, Minerals, and Mining

Fresh Water, Oceans, and Coasts

Atmospheric Science, Air Quality, and Pollution Control

Global Climate Change

Nonrenewable Energy Sources, Their Impacts, and Energy Conservation

Renewable Energy Alternatives

Managing Our Waste

The Urban Environment: Creating Sustainable Cities

Epilogue

Filters

Exam 3: Evolution, Biodiversity, and Population Ecology

Of the following, ______________ would be most vulnerable to extinction.

One example of artificial selection is ______________

An S-shaped population growth curve best describes ______________

High population density can ______________

Choose the item that best matches each item in the following: -Specific environment in which an organism lives

In ecology, a ______________ is made up of interacting populations of different species that inhabit the same area.

Endemic species ______________

Differentiate between exponential and logistic growth curves. Give examples of the conditions under which each would occur.

Population distribution describes ______________

Science and Sustainability: an Introduction to Environmental Science

Environmental Systems: Matter, Energy, and Ecosystems

Species Interactions and Community Ecology

Economics, Policy, and Sustainable Development

Human Population

Soil, Agriculture, and the Future of Food

Biodiversity and Conservation Biology

Forests, Forest Management, and Protected Areas

Environmental Health and Toxicology

Geology, Minerals, and Mining

Fresh Water, Oceans, and Coasts

Atmospheric Science, Air Quality, and Pollution Control

Global Climate Change

Nonrenewable Energy Sources, Their Impacts, and Energy Conservation

Renewable Energy Alternatives

Managing Our Waste

The Urban Environment: Creating Sustainable Cities

Epilogue

Filters