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Bio7A:  Identify evidence of change in species

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
Darwin thought that the plants and animals of the Galápagos Islands were similar to those of the nearby coast of South America because
a.
their ancestors had migrated from South America to the Galápagos Islands.
b.
other scientists in South America had written about similar species.
c.
the island organisms had the same nucleotide sequences in their DNA as the mainland organisms.
d.
he found fossils, proving that the animals and plants had common ancestors.
 

 2. 
Organisms well suited to their environment
a.
reproduce at a greater rate than those less suited to the same environment.
b.
are always larger than organisms less suited to that environment.
c.
always live longer than organisms less suited to that environment.
d.
need less food than organisms less suited to that environment.
 
 
bio7a-07_files/i0040000.jpg
 

 3. 
Refer to the illustration above. The bones labeled A are known as
a.
vestigial structures.
c.
homologous structures.
b.
sequential structures.
d.
fossil structures.
 

 4. 
Which of the following is a vestigial structure?
a.
the human tailbone
c.
flower color
b.
the bill of a finch
d.
fossil cast
 

 5. 
A human embryo exhibits all of the following during development except
a.
pharyngeal pouches.
c.
fins.
b.
a bony tail.
d.
a coat of fine fur.
 



 
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