Practice Quiz for Principles
of Classification

No. of Questions= 13

INSTRUCTIONS: To answer a question, click the button in front of your choice. A response will appear in the window below the question to let you know if you are correct. Be sure to read the feedback. It is designed to help you learn the material. You can also learn by reading the feedback for incorrect answers.

1 Humans mostly classify animals with their sense of:
a)  vision
b)  smelling
c)  hearing
2 _______________ are similar anatomical features in different species that do not have a known common ancestor.
a) analogies
b) homologies
c) homologous structures
d) b or c
3 When two species both have similar anatomical structures that were inherited from the same ancestor that also had them, the similarities are referred to as being:
a) homoplasies
b) homologies
c) neither of the above
4 Nonhomologous structures can result:
a) only from convergent evolution
b) from either convergent or parallel evolution
c) neither of the above
5 Nonhomologous structures are:
a) androgynous
b) homoplasies
c) neither of the above
6 In which of the following is the common ancestor the most distant in the past?
a) parallel evolution
b) convergent evolution
7 It is more accurate to define new species by:
a) observing breeding patterns of living organisms
b) comparing the appearance of fossils
8 In the Linnaean classification system, the word "genera" refers to:
a) the category just above genus
b) the category just below genus
c) the plural of genus
9 The Linnaean system groups organisms together into the same or similar classification categories based on presumed:
a) homologies
b) homoplasies
c) neither of the above
10 The wings of a bird and the wings of a butterfly are:
a) analogous structures
b) homologous structures
c) both of the above
11 The three long bones in your arm and in the wing of a bird are:
a) homoplastic structures
b) homologous structures
c) neither of the above
12 The evolution of similar behavioral patterns by some Australian marsupials and placental mammals living elsewhere in the world is a result of:
a) convergent evolution
b) inheritance from a common ancestor
c) neither of the above
13 When a biologist narrowly defines species based primarily on minor differences, he or she is:
a) a lumper
b) a splitter
c) inevitably correct



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