Download ESC 102 Quiz Ch 7 Name___________________________ 1.

ESC 102 Quiz Ch 7
Name___________________________
1._____ Genes that control the same trait occur in alternate forms (variations) known as
a.
twin structures
b.
chromosones
c.
bottlenecks
d.
alleles
2._____ An organism is considered to be an “evolutionary success” when
a.
it grows larger and more agile than other organisms in its environment
b.
it lives to a relatively old age
c.
it produces fertile offspring
d.
it leaves fossils for future generations to discover
3._____ The wings of birds and the forelimbs of a whale are considered to be
a.
homologous because the structures are similar
b.
homologous because the structures are distinctly different
c.
analogous because the structures are similar
d.
analogous because the structures are distinctly different
4._____ The wings of a bat and a fly are considered to be
a.
homologous because the structures are similar
b.
homologous because the structures are distinctly different
c.
analogous because the structures are similar
d.
analogous because the structures are distinctly different
5._____ The theory of evolution is not well-supported by the fossil record.
a.
true
b.
false
6._____ The theory of evolution is well-supported by genetic studies and nested similarities among organisms.
a.
true
b.
false
7._____ Charles Darwin recklessly published his evolutionary hypothesis without sufficient consideration of evidence.
a.
true
b.
false
8._____ If evolution has occurred, we would expect reptiles to appear before both mammals and birds in the fossil
record.
a.
true
b.
false
9._____ Lamarck’s theory of inheritance of acquired traits (i.e. giraffe’s long neck) was finally supported by the study of
genetics.
a.
true
b.
false
10._____ The evolution of distinct species of finches on the Galapagos Islands is an example of
a.
allopatric speciation
b.
missing evolutionary links
c.
background extinction
d.
random selection
Refer to the diagram below for the questions on this page.
Note: The outlined area for each group represents relative abundance for that group over time according to the
width of the outlined area.
All groups represented on the diagram are animals.
When answering, consider the entire diagram to see whether a group was affected.
11._____ A mass extinction occurred at the end of the Devonian period. Which group(s) of animals was/were most
negatively affected?
a.
amphibians
b.
jawed fishes
c.
cartilaginous fishes
d.
jawless fishes
12._____ The end of the Permian period is marked by the greatest extinction in Earth’s known history.
Which statement is true, according to the diagram?
a.
It is obvious that over 99% of all groups of marine and land organisms died out as a result of the extinction.
b.
All animal groups were negatively affected over time.
c.
Some animal groups were favorably affected over time.
d.
Amphibians and reptiles were favorably affected at the time of the extinction.
13._____ Birds could not have been closely related to dinosaurs because birds and dinosaurs lived together during the
Cretaceous period.
a.
true
b.
false