Question 1

Compounds found in the ____ of certain amphibians have been isolated and used in pharmaceutical products.

Accepted Answer

A) skin secretions 
B) gut contents 
C) fatty tissue 
D) brain matter 
E) saliva 
A) skin secretions 
B) gut contents 
C) fatty tissue 
D) brain matter 
E) saliva

Question 2

The four components of biodiversity increase the ____ of ecosystems and increase the resistance of ecosystems to harmful invasive species.

Accepted Answer

A) evenness 
B) function 
C) strength 
D) stability 
E) fitness 
A) evenness 
B) function 
C) strength 
D) stability 
E) fitness

Question 3

The process in which individuals with certain traits are more likely to survive and reproduce under a particular set of environmental conditions than are those without the trait is called ____.

Accepted Answer

A) natural selection 
B) adaptability 
C) genetic drift 
D) mutation 
E) scientific theory 
A) natural selection 
B) adaptability 
C) genetic drift 
D) mutation 
E) scientific theory

Question 4

The variety in the genetic makeup of individuals in a population is known as ____.

Accepted Answer

A) heritability 
B) gene flow 
C) genetic variability 
D) genetic differences 
E) genetic drift 
A) heritability 
B) gene flow 
C) genetic variability 
D) genetic differences 
E) genetic drift

Question 5

Mass extinctions, with 25 − 95% of species going extinct, have occurred how many times in the history of the earth?

Accepted Answer

A) 1 or 2 
B) 3-5 
C) 6-8 
D) 9-12 
E) 20-23 
A) 1 or 2 
B) 3-5 
C) 6-8 
D) 9-12 
E) 20-23

Question 6

The loss of a(n)____ can lead to population crashes and extinctions of other species in a community that depends on them for certain ecosystem services.

Accepted Answer

A) foundation species 
B) indicator species 
C) native species 
D) keystone species 
E) specialist species 
A) foundation species 
B) indicator species 
C) native species 
D) keystone species 
E) specialist species

Question 7

Even if a beneficial heritable trait is present in a population, the population's ability to adapt may be limited by its ____________________.

Accepted Answer

reproducti

Question 8

Before conservation efforts facilitated their comeback, the American alligator population was nearly completely wiped out primarily because of ____.

Accepted Answer

A) parasites 
B) diseases 
C) hunters 
D) land developers 
E) pollution 
A) parasites 
B) diseases 
C) hunters 
D) land developers 
E) pollution

Question 9

New species form when one species splits into two or more different species, a process called _______________.

Accepted Answer

The answer of New species form when one species splits...

Question 10

The earth's biodiversity is determined by the balance between ____.

Accepted Answer

A) geographic isolation and reproductive isolation 
B) speciation and extinction 
C) mass extinction and background extinction 
D) speciation and genetic engineering 
E) reproductive isolation and extinction 
A) geographic isolation and reproductive isolation 
B) speciation and extinction 
C) mass extinction and background extinction 
D) speciation and genetic engineering 
E) reproductive isolation and extinction

Question 11

A temperate rain forest is likely to have high species evenness and low species richness.

Accepted Answer

A) True 
 B)False

Question 12

Long-term climate changes determine where plant and animal species can survive.

Accepted Answer

A) True 
 B)False

Question 13

Today, the ____ is among the most threatened of all species in the world, with only 1,600 to 3,000 individuals left in the wild.

Accepted Answer

A) killer whale 
B) American alligator 
C) American bullfrog 
D) giant panda 
E) koala 
A) killer whale 
B) American alligator 
C) American bullfrog 
D) giant panda 
E) koala

Question 14

Keystone species have a large effect on the types and abundances of other species in an ecosystem.

Accepted Answer

A) True 
 B)False

Question 15

What term describes the number of different species in a given area?

Accepted Answer

A) speciation 
B) species evenness 
C) species niche 
D) species richness 
E) habitat 
A) speciation 
B) species evenness 
C) species niche 
D) species richness 
E) habitat

Question 16

What human adaptation may enable us to live more sustainably by understanding and copying the ways in which nature has sustained itself for billions of years, despite major changes in environmental conditions?

Accepted Answer

A) our ability to use tools 
B) our genes can change over time 
C) our physical strength 
D) our complex brain 
E) our biological fitness is superior to other animals 
A) our ability to use tools 
B) our genes can change over time 
C) our physical strength 
D) our complex brain 
E) our biological fitness is superior to other animals

Question 17

Which of the following is least associated with biodiversity?

Accepted Answer

A) functional diversity 
B) genetic diversity 
C) geological diversity 
D) ecological diversity 
E) species diversity 
A) functional diversity 
B) genetic diversity 
C) geological diversity 
D) ecological diversity 
E) species diversity

Question 18

Who was responsible for providing a convincing explanation of how organisms change over time and are descended from a single common ancestor through the mechanism of natural selection?

Accepted Answer

A) Charles Darwin 
B) Alfred Russel Wallace 
C) Edward O. Wilson 
D) Charles Darwin and Alfred Russel Wallace 
E) Charles Darwin and Edward O. Wilson 
A) Charles Darwin 
B) Alfred Russel Wallace 
C) Edward O. Wilson 
D) Charles Darwin and Alfred Russel Wallace 
E) Charles Darwin and Edward O. Wilson

Question 19

One contributing factor of the declines in many frog species is that frog eggs have ____.

Accepted Answer

A) shells that prevent frog embryos from hatching easily 
B) shells that are permeable to water pollutants 
C) no shells to protect from embryos from predation 
D) no shells to protect frog embryos from dehydration 
E) no shells to protect frog embryos from water pollutants 
A) shells that prevent frog embryos from hatching easily 
B) shells that are permeable to water pollutants 
C) no shells to protect from embryos from predation 
D) no shells to protect frog embryos from dehydration 
E) no shells to protect frog embryos from water pollutants

Question 20

Which of the two species on the graph is more prone to extinction and why?

Accepted Answer

The panda is more prone to ext

Compounds found in the ____ of certain amphibians have been isolated and used in pharmaceutical products.

The four components of biodiversity increase the ____ of ecosystems and increase the resistance of ecosystems to harmful invasive species.

The process in which individuals with certain traits are more likely to survive and reproduce under a particular set of environmental conditions than are those without the trait is called ____.

The variety in the genetic makeup of individuals in a population is known as ____.

Mass extinctions, with 25 − 95% of species going extinct, have occurred how many times in the history of the earth?

The loss of a(n)____ can lead to population crashes and extinctions of other species in a community that depends on them for certain ecosystem services.

Even if a beneficial heritable trait is present in a population, the population's ability to adapt may be limited by its ____________________.

Before conservation efforts facilitated their comeback, the American alligator population was nearly completely wiped out primarily because of ____.

New species form when one species splits into two or more different species, a process called _______________.

The earth's biodiversity is determined by the balance between ____.

A temperate rain forest is likely to have high species evenness and low species richness.

Long-term climate changes determine where plant and animal species can survive.

Today, the ____ is among the most threatened of all species in the world, with only 1,600 to 3,000 individuals left in the wild.

Keystone species have a large effect on the types and abundances of other species in an ecosystem.

What term describes the number of different species in a given area?

What human adaptation may enable us to live more sustainably by understanding and copying the ways in which nature has sustained itself for billions of years, despite major changes in environmental conditions?

Which of the following is least associated with biodiversity?

Who was responsible for providing a convincing explanation of how organisms change over time and are descended from a single common ancestor through the mechanism of natural selection?

One contributing factor of the declines in many frog species is that frog eggs have ____.

Which of the two species on the graph is more prone to extinction and why?

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity, Species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Filters

Exam 4: Biodiversity and Evolution

Compounds found in the ____ of certain amphibians have been isolated and used in pharmaceutical products.

The four components of biodiversity increase the ____ of ecosystems and increase the resistance of ecosystems to harmful invasive species.

The process in which individuals with certain traits are more likely to survive and reproduce under a particular set of environmental conditions than are those without the trait is called ____.

The variety in the genetic makeup of individuals in a population is known as ____.

Mass extinctions, with 25 − 95% of species going extinct, have occurred how many times in the history of the earth?

The loss of a(n)____ can lead to population crashes and extinctions of other species in a community that depends on them for certain ecosystem services.

Even if a beneficial heritable trait is present in a population, the population's ability to adapt may be limited by its ____________________.

Before conservation efforts facilitated their comeback, the American alligator population was nearly completely wiped out primarily because of ____.

New species form when one species splits into two or more different species, a process called _______________.

The earth's biodiversity is determined by the balance between ____.

A temperate rain forest is likely to have high species evenness and low species richness.

Long-term climate changes determine where plant and animal species can survive.

Today, the ____ is among the most threatened of all species in the world, with only 1,600 to 3,000 individuals left in the wild.

Keystone species have a large effect on the types and abundances of other species in an ecosystem.

What term describes the number of different species in a given area?

What human adaptation may enable us to live more sustainably by understanding and copying the ways in which nature has sustained itself for billions of years, despite major changes in environmental conditions?

Which of the following is least associated with biodiversity?

Who was responsible for providing a convincing explanation of how organisms change over time and are descended from a single common ancestor through the mechanism of natural selection?

One contributing factor of the declines in many frog species is that frog eggs have ____.

Which of the two species on the graph is more prone to extinction and why?

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity, Species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Filters