Question 1

If similarities between two structures in different organisms reflect common ancestry,these structures are

Accepted Answer

A)   vestigial.
B)   analogous.
C)   homologous.
D)   homeotic.
E)   heterologous.

Question 2

The Cretaceous and Jurassic periods are part of the

Accepted Answer

A)   Mesozoic era.
B)   Archean era.
C)   Proterozoic era.
D)   Cenozoic era.
E)   Paleozoic era.

Question 3

The abundant presence of ammonite fossils in a large area indicates that the area was once part of an ocean.

Accepted Answer

A) True 
 B)False

Question 4

A gene that when mutated leads to organisms with structures in abnormal places is termed

Accepted Answer

A)   parsimonious.
B)   homeotic.
C)   homologous.
D)   vestigial.
E)   dominant.

Question 5

Marsupials are mammals that

Accepted Answer

A)   lay eggs.
B)   do not give live birth.
C)   have evolved recently.
D)   carry their young in a pouch.
E)   breathe through gills.

Question 6

The number of differences between cytochrome c of humans and cytochrome c of other organisms is as follows: Rhesus monkey - 1 difference; pigeon - 12 differences; fruit fly - 24 differences.The order in which these species are most similar to humans is

Accepted Answer

A)   Rhesus monkey, pigeon, fruit fly.
B)   pigeon, Rhesus monkey, fruit fly.
C)   pigeon, fruit fly, Rhesus monkey.
D)   Rhesus monkey, fruit fly, pigeon.
E)   fruit fly, pigeon, Rhesus monkey.

Question 7

Absolute dating uses ________ to estimate how old a fossil is.

Accepted Answer

A)   depth within rock layers
B)   radioactive isotopes
C)   a molecular clock
D)   structural features
E)   embryonic structures

Question 8

What is needed to estimate species relatedness with a molecular clock?

Accepted Answer

A)   the known mutation rate of a gene
B)   the original DNA sequence for the gene without mutations
C)   the number of differences in DNA sequences for a gene in two species
D)   the same gene identified in two species
E)   All answers are correct.

Question 9

The half life of ¹⁴C is 5,730 years.If you test a fossilized bone and find that it has 1/8th the ¹⁴C as a modern bone,you could conclude that it is approximately ________ years old.

Accepted Answer

A)   11,460
B)   5,730
C)   42,960
D)   716
E)   17,190

Question 10

Which of the following evolutionary events did not occur during the Mesozic era?

Accepted Answer

A)   cycads and ferns were abundant
B)   widespread dinosaurs extinction
C)   first dinosaurs roamed the earth
D)   giant reptiles were on land and in water
E)   first primates were abundant

Exam 13: Evidence of Evolution

If similarities between two structures in different organisms reflect common ancestry,these structures are

Correct Answer
verified

The Cretaceous and Jurassic periods are part of the

Correct Answer
verified

Which of the following evolutionary events did not occur during the Mesozic era?

Correct Answer
verified

The abundant presence of ammonite fossils in a large area indicates that the area was once part of an ocean.

Correct Answer
verified

The number of differences between cytochrome c of humans and cytochrome c of other organisms is as follows: Rhesus monkey - 1 difference; pigeon - 12 differences; fruit fly - 24 differences.The order in which these species are most similar to humans is

Correct Answer
verified

Marsupials are mammals that

Correct Answer
verified

Absolute dating uses ________ to estimate how old a fossil is.

Correct Answer
verified

What is needed to estimate species relatedness with a molecular clock?

Correct Answer
verified

A gene that when mutated leads to organisms with structures in abnormal places is termed

Correct Answer
verified

The half life of ¹⁴C is 5,730 years.If you test a fossilized bone and find that it has 1/8th the ¹⁴C as a modern bone,you could conclude that it is approximately ________ years old.

Correct Answer
verified

Exam 13: Evidence of Evolution

If similarities between two structures in different organisms reflect common ancestry,these structures are

Correct AnswerverifiedShow Answer

The Cretaceous and Jurassic periods are part of the

Correct AnswerverifiedShow Answer

Which of the following evolutionary events did not occur during the Mesozic era?

Correct AnswerverifiedShow Answer

The abundant presence of ammonite fossils in a large area indicates that the area was once part of an ocean.

Correct AnswerverifiedShow Answer

The number of differences between cytochrome c of humans and cytochrome c of other organisms is as follows: Rhesus monkey - 1 difference; pigeon - 12 differences; fruit fly - 24 differences.The order in which these species are most similar to humans is

Correct AnswerverifiedShow Answer

Marsupials are mammals that

Correct AnswerverifiedShow Answer

Absolute dating uses ________ to estimate how old a fossil is.

Correct AnswerverifiedShow Answer

What is needed to estimate species relatedness with a molecular clock?

Correct AnswerverifiedShow Answer

A gene that when mutated leads to organisms with structures in abnormal places is termed

Correct AnswerverifiedShow Answer

The half life of ¹⁴C is 5,730 years.If you test a fossilized bone and find that it has 1/8th the ¹⁴C as a modern bone,you could conclude that it is approximately ________ years old.

Correct AnswerverifiedShow Answer

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