Question 1

Artificial selection is responsible for many vegetable varieties.

Accepted Answer

A) True 
 B)False

Question 2

Changes in heritable traits in a population through multiple generations is called

Accepted Answer

A)   heredity.
B)   mitosis.
C)   phenotype.
D)   evolution.
E)   genotype.

Question 3

Antibiotic resistance is becoming more common in disease-causing bacteria because

Accepted Answer

A)   antibiotics are used in feed for livestock.
B)   antibiotics are sometimes prescribed for viral infections (due to pressure from patients) .
C)   some patients do not take the antibiotics as directed.
D)   antibiotics are used to treat infections in cattle, chickens, and other animals used for agricultural purposes.
E)   All answers are correct.

Question 4

Ancestors of giraffes with shorter necks could not reach branches high up in trees for food.This led to ________ for giraffes with longer necks.

Accepted Answer

A)   stabilizing selection
B)   disruptive selection
C)   artificial selection
D)   sexual selection
E)   directional selection

Question 5

The few ancestors of the Galápagos finches who colonized the islands is an example of

Accepted Answer

A)   the bottleneck effect.
B)   natural selection.
C)   increased mutation rate.
D)   artificial selection.
E)   the founder effect.

Question 6

Darwin obtained which of the following in the Essay on the Principle of Population by Malthus?

Accepted Answer

A)   Organisms are varied and some variations are inherited.
B)   Populations grow constantly.
C)   An individual's chance of survival is random.
D)   Species do not change over time.
E)   More individuals of a population are born than survive to reproduce.

Question 7

The chance that a mutation will occur is independent of whether a new phenotype will benefit a population.

Accepted Answer

A) True 
 B)False

Question 8

The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is

Accepted Answer

A)   directional selection.
B)   disruptive selection.
C)   stabilizing selection.
D)   artificial selection.
E)   uniformitarianism.

Question 9

Darwin referred to a gradual change from an ancestral type as

Accepted Answer

A)   uniformitarianism.
B)   descent with modification.
C)   fossils.
D)   natural selection.
E)   special creation.

Question 10

Ancestors of the Galápagos finches had two different types of seeds to eat on some islands.Some seeds were very small and required small beaks to handle.Other seeds were very large and required large strong beaks to crack.This led to ________ among the Galápagos finches.

Accepted Answer

A)   directional selection
B)   stabilizing selection
C)   disruptive selection
D)   artificial selection
E)   sexual selection

Exam 12: Forces of Evolutionary Change

The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is

Correct Answer
verified

Artificial selection is responsible for many vegetable varieties.

Correct Answer
verified

Changes in heritable traits in a population through multiple generations is called

Correct Answer
verified

Ancestors of giraffes with shorter necks could not reach branches high up in trees for food.This led to ________ for giraffes with longer necks.

Correct Answer
verified

Darwin obtained which of the following in the Essay on the Principle of Population by Malthus?

Correct Answer
verified

Ancestors of the Galápagos finches had two different types of seeds to eat on some islands.Some seeds were very small and required small beaks to handle.Other seeds were very large and required large strong beaks to crack.This led to ________ among the Galápagos finches.

Correct Answer
verified

The chance that a mutation will occur is independent of whether a new phenotype will benefit a population.

Correct Answer
verified

Antibiotic resistance is becoming more common in disease-causing bacteria because

Correct Answer
verified

The few ancestors of the Galápagos finches who colonized the islands is an example of

Correct Answer
verified

Darwin referred to a gradual change from an ancestral type as

Correct Answer
verified

Exam 12: Forces of Evolutionary Change

The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is

Correct AnswerverifiedShow Answer

Artificial selection is responsible for many vegetable varieties.

Correct AnswerverifiedShow Answer

Changes in heritable traits in a population through multiple generations is called

Correct AnswerverifiedShow Answer

Ancestors of giraffes with shorter necks could not reach branches high up in trees for food.This led to ________ for giraffes with longer necks.

Correct AnswerverifiedShow Answer

Darwin obtained which of the following in the Essay on the Principle of Population by Malthus?

Correct AnswerverifiedShow Answer

Ancestors of the Galápagos finches had two different types of seeds to eat on some islands.Some seeds were very small and required small beaks to handle.Other seeds were very large and required large strong beaks to crack.This led to ________ among the Galápagos finches.

Correct AnswerverifiedShow Answer

The chance that a mutation will occur is independent of whether a new phenotype will benefit a population.

Correct AnswerverifiedShow Answer

Antibiotic resistance is becoming more common in disease-causing bacteria because

Correct AnswerverifiedShow Answer

The few ancestors of the Galápagos finches who colonized the islands is an example of

Correct AnswerverifiedShow Answer

Darwin referred to a gradual change from an ancestral type as

Correct AnswerverifiedShow Answer

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
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