Question 1

If two organisms of different species share more similar DNA sequences with each other than with other species,we can conclude that ________.

Accepted Answer

A)   these two species are not closely related
B)   these two species are very closely related
C)   these two species happen to share similar DNA by chance
D)   there is no relationship between similar DNA and how closely related organisms are B

Question 2

What is the name for the study of the geographic distribution of species?

Accepted Answer

A)   Biogeography
B)   Ecology
C)   Systematics
D)   Taxonomy

Question 3

Which classification grouping includes the greatest number of species?

Accepted Answer

A)   Domain
B)   Order
C)   Phylum
D)   Kingdom

Question 4

Which grouping immediately follows Order in the classification hierarchy?

Accepted Answer

A)   Genus
B)   Family
C)   Phylum
D)   Class

Question 5

Use the phylogenetic tree below to answer the following question(s) .
 
-According to this phylogenetic tree,which bear is most closely related to the American black bear?

Accepted Answer

A)   The sun bear
B)   The Asiatic black bear
C)   The polar bear
D)   The brown bear B

Question 6

Which model of evolution is closest to what was originally suggested by Charles Darwin?

Accepted Answer

A)   Punctuated equilibrium model
B)   Graduated model
C)   Neither the punctuated equilibrium model nor the graduated model
D)   Both the punctuated equilibrium model and the graduated model

Question 7

Individuals with variations that make them best suited to their environment are,on average,more likely to ________.

Accepted Answer

A)   evolve
B)   change over time
C)   survive and reproduce
D)   be larger C

Question 8

Before the publication of Charles Darwin's On the Origin of Species,what was the prevailing public consensus regarding species evolution?

Accepted Answer

A)   That species were permanent and unchanging
B)   That species evolved through physical changes that led to success
C)   That species evolved by means of natural selection
D)   That species were modified over time but did not change into new species

Question 9

All prokaryotes are in the domain ________.

Accepted Answer

A)   Bacteria
B)   Prokarya
C)   Eukarya
D)   Prokaryotes are in different domains.

Question 10

What is an exception to the standard biological species concept used to define a species?

Accepted Answer

A)   Species that coevolved cannot be distinguished using this concept.
B)   Natural interbreeding populations cannot be distinguished using this concept.
C)   Asexual species cannot be distinguished using this concept.
D)   Species that do not resemble one another cannot be distinguished using this concept.

Question 11

Some of the "branches" of a phylogenetic tree do not extend to the end.What do these lines represent?

Accepted Answer

A)   Extinct species
B)   Species of unknown origin
C)   Convergent species
D)   Lineages that have not changed

Question 12

What does fitness mean when speaking in terms of evolution?

Accepted Answer

A)   Level of overall health of the individual
B)   How many offspring an individual produces
C)   Level of overall health of the population
D)   The size and diversity of the gene pool

Question 13

Comparing DNA sequences to find evidence of a shared evolutionary history is called ________.

Accepted Answer

A)   genomics
B)   proteomics
C)   differential relatedness
D)   bioinformatics

Question 14

Evolution can be best defined as ________.

Accepted Answer

A)   the production of new species
B)   not involving humans
C)   change in gene frequency in a population
D)   always taking a very long time to occur

Question 15

The modern evolutionary synthesis of the 1930s and 1940s melded together Darwin's findings with ________.

Accepted Answer

A)   genetics
B)   sociology
C)   psychology
D)   chemistry

Question 16

What contribution did Charles Lyell make?

Accepted Answer

A)   He found some bird specimens on the Galapagos Islands.
B)   He found some fossils of extinct species.
C)   He suggested that life evolves through physical changes within the life span of an organism.
D)   He provided the first evidence that the Earth is much older than was previously thought.

Question 17

Use the phylogenetic tree below to answer the following question(s) .
 
-According to the phylogenetic tree above,which bear is most closely related to the sun bear?

Accepted Answer

A)   The sloth bear
B)   The brown bear

Question 18

Can you inherit physical traits that your parents acquired during their lifetime?

Accepted Answer

A)   No
B)   Yes
C)   Only if it improves survivability
D)   Only if it improves reproductive success

Question 19

Class Reptilia includes all reptiles,and Class Aves includes all birds.However,a cladistics approach would place birds in the same class with reptiles.Why would a cladistician classify birds and reptiles in a single class despite the behavioral and physical differences between the two?

Accepted Answer

The degree of evolutionary relatedness i...

Question 20

What prompted Darwin to publish his book decades after he began writing it?

Accepted Answer

A)   He had completed the last of his experiments.
B)   He had returned from his voyage around the world.
C)   A colleague (Alfred Wallace)  was about to publish a similar manuscript.
D)   After years of searching, he finally found a publisher willing to accept it.

Exam 7: Darwinian Evolution

If two organisms of different species share more similar DNA sequences with each other than with other species,we can conclude that ________.

Correct AnswerverifiedB

What is the name for the study of the geographic distribution of species?

Correct AnswerverifiedShow Answer

Which classification grouping includes the greatest number of species?

Correct AnswerverifiedShow Answer

Which grouping immediately follows Order in the classification hierarchy?

Correct AnswerverifiedShow Answer

Use the phylogenetic tree below to answer the following question(s) . -According to this phylogenetic tree,which bear is most closely related to the American black bear?

Correct AnswerverifiedB

Which model of evolution is closest to what was originally suggested by Charles Darwin?

Correct AnswerverifiedShow Answer

Individuals with variations that make them best suited to their environment are,on average,more likely to ________.

Correct AnswerverifiedC

Before the publication of Charles Darwin's On the Origin of Species,what was the prevailing public consensus regarding species evolution?

Correct AnswerverifiedShow Answer

All prokaryotes are in the domain ________.

Correct AnswerverifiedShow Answer

What is an exception to the standard biological species concept used to define a species?

Correct AnswerverifiedShow Answer

Some of the "branches" of a phylogenetic tree do not extend to the end.What do these lines represent?

Correct AnswerverifiedShow Answer

What does fitness mean when speaking in terms of evolution?

Correct AnswerverifiedShow Answer

Comparing DNA sequences to find evidence of a shared evolutionary history is called ________.

Correct AnswerverifiedShow Answer

Evolution can be best defined as ________.

Correct AnswerverifiedShow Answer

The modern evolutionary synthesis of the 1930s and 1940s melded together Darwin's findings with ________.

Correct AnswerverifiedShow Answer

What contribution did Charles Lyell make?

Correct AnswerverifiedShow Answer

Use the phylogenetic tree below to answer the following question(s) . -According to the phylogenetic tree above,which bear is most closely related to the sun bear?

Correct AnswerverifiedShow Answer

Can you inherit physical traits that your parents acquired during their lifetime?

Correct AnswerverifiedShow Answer

Class Reptilia includes all reptiles,and Class Aves includes all birds.However,a cladistics approach would place birds in the same class with reptiles.Why would a cladistician classify birds and reptiles in a single class despite the behavioral and physical differences between the two?

Correct AnswerverifiedThe degree of evolutionary relatedness i...View AnswerShow Answer

What prompted Darwin to publish his book decades after he began writing it?

Correct AnswerverifiedShow Answer

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The degree of evolutionary relatedness i...
View Answer

Correct Answer
verified