Question 1

Plants grown under a medium light condition would exhibit how much biomass?

Accepted Answer

A) 5g 
B) 20g 
C) 30g 
D) 45g 
A) 5g 
B) 20g 
C) 30g 
D) 45g

Question 2

Squirrels tend to have larger body sizes at higher latitudes.This could be an example of

Accepted Answer

A) acclimation. 
B) positive assortative mating. 
C) a cline. 
D) the Hardy-Weinberg principle. 
A) acclimation. 
B) positive assortative mating. 
C) a cline. 
D) the Hardy-Weinberg principle.

Question 3

Researchers Rosemary and Peter Grant have discovered that beak size frequency of Galápagos Island medium ground finch populations varies with all the following,except

Accepted Answer

A) rainfall. 
B) seed hardness. 
C) seed size. 
D) seed color. 
A) rainfall. 
B) seed hardness. 
C) seed size. 
D) seed color.

Question 4

The tongue length of an animal is controlled by two alternative alleles at a single locus,L (long)and l (short).If an individual has parents that are both homozygous dominant,it will be

Accepted Answer

A) homozygous dominant with a long tongue. 
B) heterozygous with a long tongue. 
C) heterozygous with a short tongue. 
D) homozygous recessive with a long tongue. 
A) homozygous dominant with a long tongue. 
B) heterozygous with a long tongue. 
C) heterozygous with a short tongue. 
D) homozygous recessive with a long tongue.

Question 5

Individual beak size of individual finches of the Galápagos Islands

Accepted Answer

A) may change during a bird's lifetime. 
B) will always match the beak size useful for seed foraging. 
C) has nothing to do with overall population characteristics. 
D) will greatly influence individual survival. 
A) may change during a bird's lifetime. 
B) will always match the beak size useful for seed foraging. 
C) has nothing to do with overall population characteristics. 
D) will greatly influence individual survival.

Question 6

According to the Hardy-Weinberg principle,which of the following must be true for gene frequencies in a population to remain the same?

Accepted Answer

A) Mating is random. 
B) Mutations occur consistently. 
C) The population is small. 
D) Natural selection occurs. 
A) Mating is random. 
B) Mutations occur consistently. 
C) The population is small. 
D) Natural selection occurs.

Question 7

The simplest response an individual organism can make to a change in environmental conditions is to

Accepted Answer

A) remain still. 
B) move to a more suitable location. 
C) produce offspring that are better suited to the new conditions. 
D) reduce foraging activity. 
A) remain still. 
B) move to a more suitable location. 
C) produce offspring that are better suited to the new conditions. 
D) reduce foraging activity.

Question 8

A population of a species that is distinguishable from other populations by one or more characteristics is referred to as a(n)________.

Accepted Answer

The answer of A population of a species that is...

Question 9

The specific traits of a particular organism enabling it to survive,grow,and reproduce within a given environment are called

Accepted Answer

A) mutations. 
B) genes. 
C) adaptations. 
D) phenotypes. 
A) mutations. 
B) genes. 
C) adaptations. 
D) phenotypes.

Question 10

Most mutations are beneficial.

Accepted Answer

A) True 
 B)False

Question 11

________ are heritable changes in a gene or chromosome.

Accepted Answer

The answer of ________ are heritable changes in a gene...

Question 12

If birds with larger beaks are favored by the environment,it is likely that ________ selection will occur.

Accepted Answer

A) directional 
B) disruptive 
C) stabilizing 
D) standardizing 
A) directional 
B) disruptive 
C) stabilizing 
D) standardizing

Question 13

What is the allele frequency of q in a population with genotypic frequencies of P = 0.3,H = 0.4,and Q = 0.3?

Accepted Answer

A) 0)3 
B) 0)5 
C) 0)6 
D) 0)9 
A) 0)3 
B) 0)5 
C) 0)6 
D) 0)9

Question 14

The phenotypic trait that selection acts upon directly is referred to as the ________ of selection.

Accepted Answer

The answer of The phenotypic trait that selection acts upon...

Question 15

Genes are arranged in threadlike bodies called chromosomes.

Accepted Answer

A) True 
 B)False

Question 16

The expression of different phenotypic traits for a given genotype under different environmental conditions is referred to as

Accepted Answer

A) acclimation. 
B) phenotypic plasticity. 
C) developmental plasticity. 
D) habituation. 
A) acclimation. 
B) phenotypic plasticity. 
C) developmental plasticity. 
D) habituation.

Question 17

The position occupied by a gene on the chromosome is called the locus.

Accepted Answer

A) True 
 B)False

Question 18

________ is the differential success of individuals in a population in response to environmental conditions.

Accepted Answer

The answer of ________ is the differential success of individuals...

Question 19

Gene flow is restricted between subspecies because of some extrinsic barrier,such as rivers or mountain ridges.

Accepted Answer

A) True 
 B)False

Question 20

A(n)________ is a population that has adapted to its unique local environmental conditions.

Accepted Answer

The answer of A(n)________ is a population that has adapted...

Exam 5: Adaptation and Natural Selection

Plants grown under a medium light condition would exhibit how much biomass?

Squirrels tend to have larger body sizes at higher latitudes.This could be an example of

Researchers Rosemary and Peter Grant have discovered that beak size frequency of Galápagos Island medium ground finch populations varies with all the following,except

The tongue length of an animal is controlled by two alternative alleles at a single locus,L (long)and l (short).If an individual has parents that are both homozygous dominant,it will be

Individual beak size of individual finches of the Galápagos Islands

According to the Hardy-Weinberg principle,which of the following must be true for gene frequencies in a population to remain the same?

The simplest response an individual organism can make to a change in environmental conditions is to

A population of a species that is distinguishable from other populations by one or more characteristics is referred to as a(n)________.

The specific traits of a particular organism enabling it to survive,grow,and reproduce within a given environment are called

Most mutations are beneficial.

________ are heritable changes in a gene or chromosome.

If birds with larger beaks are favored by the environment,it is likely that ________ selection will occur.

What is the allele frequency of q in a population with genotypic frequencies of P = 0.3,H = 0.4,and Q = 0.3?

The phenotypic trait that selection acts upon directly is referred to as the ________ of selection.

Genes are arranged in threadlike bodies called chromosomes.

The expression of different phenotypic traits for a given genotype under different environmental conditions is referred to as

The position occupied by a gene on the chromosome is called the locus.

________ is the differential success of individuals in a population in response to environmental conditions.

Gene flow is restricted between subspecies because of some extrinsic barrier,such as rivers or mountain ridges.

A(n)________ is a population that has adapted to its unique local environmental conditions.

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Plant Adaptations to the Environment

Animal Adaptations to the Environment

Properties of Populations

Population Growth

Life History

Intraspecific Population Regulation

Species Interactions, population Dynamics, and Natural Selection

Interspecific Competition

Predation

Parasitism and Mutualism

Community Structure

Factors Influencing the Structure of Communities

Community Dynamics

Landscape Dynamics

Ecosystem Energetics

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Large-Scale Patterns of Biological Diversity

The Ecology of Climate Change

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