Question 1

If there are 10 tortoises on a 2 hectare island,the population density is 5 tortoises per hectare.

Accepted Answer

A) True 
 B)False

Question 2

A density-independent factor is one that affects population without regard to the number of individuals per area.

Accepted Answer

A) True 
 B)False

Question 3

If a species of fruit fly needs a minimum amount of leaf surface area for mating,once there are enough fruit flies to occupy all mating spaces,the population is at carrying capacity.

Accepted Answer

A) True 
 B)False

Question 4

Which best describes the link between survivorship curves and opportunistic species?

Accepted Answer

A)  Opportunistic species are limited by density-dependent factors and have few offspring. 
B)  Opportunistic species are limited by density-independent factors and have few offspring. 
C)  Opportunistic species are limited by density-independent factors and have many offspring. 
D)  Opportunistic species are limited by density-dependent factors and have many offspring. 
E)  No answer is correct. 
A)  Opportunistic species are limited by density-dependent factors and have few offspring. 
B)  Opportunistic species are limited by density-independent factors and have few offspring. 
C)  Opportunistic species are limited by density-independent factors and have many offspring. 
D)  Opportunistic species are limited by density-dependent factors and have many offspring. 
E)  No answer is correct.

Question 5

In a survivorship curve,a type II species,like a song bird,is a species that has

Accepted Answer

A)  an equal probability of dying at any age. 
B)  a strong possibility of becoming extinct in a relatively short period of time. 
C)  the highest probability of dying as it reaches its maximum life span. 
D)  an extremely short life span. 
E)  the highest probability of dying at a very young age. 
A)  an equal probability of dying at any age. 
B)  a strong possibility of becoming extinct in a relatively short period of time. 
C)  the highest probability of dying as it reaches its maximum life span. 
D)  an extremely short life span. 
E)  the highest probability of dying at a very young age.

Question 6

A group of organisms of one species occupying a geographical location at the same time is a

Accepted Answer

A)  population. 
B)  community. 
C)  peer group. 
D)  flock. 
E)  herd. 
A)  population. 
B)  community. 
C)  peer group. 
D)  flock. 
E)  herd.

Question 7

Ecologists study

Accepted Answer

A)  prokaryotes only. 
B)  eukaryotes only. 
C)  interactions between all organisms. 
D)  plants and animals only. 
E)  animals only. 
A)  prokaryotes only. 
B)  eukaryotes only. 
C)  interactions between all organisms. 
D)  plants and animals only. 
E)  animals only.

Question 8

An example of a density-independent factor that affects a population's growth is

Accepted Answer

A)  insects eating your tomato plants. 
B)  your tomato plants competing for water. 
C)  a fungus infecting your tomato plants. 
D)  frost killing all of your tomato plants. 
E)  All answers are correct. 
A)  insects eating your tomato plants. 
B)  your tomato plants competing for water. 
C)  a fungus infecting your tomato plants. 
D)  frost killing all of your tomato plants. 
E)  All answers are correct.

Question 9

Researchers studying guppies in Trinidad found that guppies in streams with high predation reproduced earlier and more frequently.Which of the following is most important in driving the guppies to change their life history in face of predation?

Accepted Answer

A)  The guppies are an equilibrium species. 
B)  The guppies are an opportunistic species. 
C)  Density-independent factors affect the guppy populations. 
D)  Density-dependent factors affect the guppy populations. 
E)  Sexual selection affects the guppy populations. 
A)  The guppies are an equilibrium species. 
B)  The guppies are an opportunistic species. 
C)  Density-independent factors affect the guppy populations. 
D)  Density-dependent factors affect the guppy populations. 
E)  Sexual selection affects the guppy populations.

Question 10

In regards to a species' life history,equilibrium species

Accepted Answer

A)  have only a few offspring. 
B)  are short-lived. 
C)  reproduce at an early age. 
D)  have a large number of offspring. 
E)  give very little care to their offspring. 
A)  have only a few offspring. 
B)  are short-lived. 
C)  reproduce at an early age. 
D)  have a large number of offspring. 
E)  give very little care to their offspring.

If there are 10 tortoises on a 2 hectare island,the population density is 5 tortoises per hectare.

A density-independent factor is one that affects population without regard to the number of individuals per area.

If a species of fruit fly needs a minimum amount of leaf surface area for mating,once there are enough fruit flies to occupy all mating spaces,the population is at carrying capacity.

Which best describes the link between survivorship curves and opportunistic species?

In a survivorship curve,a type II species,like a song bird,is a species that has

A group of organisms of one species occupying a geographical location at the same time is a

Ecologists study

An example of a density-independent factor that affects a population's growth is

Researchers studying guppies in Trinidad found that guppies in streams with high predation reproduced earlier and more frequently.Which of the following is most important in driving the guppies to change their life history in face of predation?

In regards to a species' life history,equilibrium species

The Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

Respiration and Fermentation

DNA Structure and Gene Function

DNA Replication,Binary Fission,and Mitosis

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

The Digestive and Urinary Systems

The Immune System

Animal Reproduction and Development

Filters

Exam 18: Populations

If there are 10 tortoises on a 2 hectare island,the population density is 5 tortoises per hectare.

A density-independent factor is one that affects population without regard to the number of individuals per area.

If a species of fruit fly needs a minimum amount of leaf surface area for mating,once there are enough fruit flies to occupy all mating spaces,the population is at carrying capacity.

Which best describes the link between survivorship curves and opportunistic species?

In a survivorship curve,a type II species,like a song bird,is a species that has

A group of organisms of one species occupying a geographical location at the same time is a

Ecologists study

An example of a density-independent factor that affects a population's growth is

Researchers studying guppies in Trinidad found that guppies in streams with high predation reproduced earlier and more frequently.Which of the following is most important in driving the guppies to change their life history in face of predation?

In regards to a species' life history,equilibrium species

The Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

Respiration and Fermentation

DNA Structure and Gene Function

DNA Replication,Binary Fission,and Mitosis

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

The Digestive and Urinary Systems

The Immune System

Animal Reproduction and Development

Filters