The Origin of Species
True and False Questions
There are two California salamanders which are very different in appearance, yet they interbreed routinely in nature. These are different species, since they differ in appearance.
Two species within the same class share more recent ancestry than do two species in different classes.
The kingdom Protista includes the bacteria.
In cladistics, closely related taxa will tend to have more shared derived characters.
Continental drift has probably led to allopatric speciation in the past.
In plants, sympatric speciation may occur through hybridization and stabilization of the hybrid.
Polyploidy is much more important in species formation in animals than it is in plants.
An example of evolutionary co-adaptation might be a flowering plant and its insect pollinator.
Multiple Choice Questions - Choose the best available answer.
The person(s) credited as the founder(s) of modern taxonomy is (are)
a) Charles Darwin
b) Carolus Linnaeus
c) Ernst Mayr
d) Niles Eldridge and Stephen Jay Gould
e) Alfred Russel Wallace
From most inclusive to most specific, the taxonomic categories for animals are:
a) kingdom, division, class, order, family, genus, species
b) kingdom, phylum, class, order, family, genus, species
c) kingdom, division, order, class, family, genus, species
d) kingdom, phylum, order, class, family, genus, species
The phenetic approach to classifying organisms is based on
a) homologies of structures
b) the relative number of shared characteristics, whether primitive or derived
c) shared derived traits and time of divergence
d) whether two organisms look alike or not
Sympatric speciation is believed to be more common
a) in geographically separated groups
b) during periods of continental drift
c) in development of animal species
d) in development of plants species
Which reproductive isolating mechanism operates postzygotically?
a) geographic barriers
b) hybrid sterility
c) behavioral differences
d) habitat differences
e) mechanical barriers
Which of the following properties must two species have in order to be "good" biological species?
a) They must have different appearances.
b) They must live in different habitats.
c) They must be separated by reproductive isolating mechanisms.
d) They must be descended from different ancestors.
e) They must live in different geographical areas.
Darwins conception of the pace of evolution could best be described as
a) evolutionary gradualism
b) punctuated equilibrium
c) biological revolution
d) adaptive radiation
The large land mass which existed some 200 million years ago and gave rise to the continents of today has been given the name
In Kettlewell's mark and recapture experiments with moths, he found that the light colored moth survived better than the black in unpolluted woods. The data are below
White moth Black moth Marked and released 496 473 Recaptured 62 30
What is the relative fitness value for the black moth?
e) none of the above
What is the selection coefficient for the white moth?
e) none of the above
You have: answers correct out of a possible eighteen.
The question numbers that were not correct are:
Instructor: Professor Clyde Herreid, firstname.lastname@example.org