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8.
 Explain three characteristics of
all animals.
9.
 Explain why scientists use a
classification system for organisms.
10.
 Suppose you had to combine the six
kingdoms into just three groups. What
would you name the three groups and
what kingdoms would be in each?
11.
 Classify the following animals. Make
a chart like the one below. Place each
animal in its correct class in your chart.
  Clownfish
Stellar’s Jay
Eastern Gray Squirrel
Western Diamondback Rattlesnake
Golden-Lined Frog
  class (p. 8)
  classify (p. 7)
  invertebrate
 (p. 18)
kingdom (p. 8)
phylum (p. 8)
species (p. 8)
vertebrate (p. 10)
 
 Choose the term from the list above that
 is described by each statement.
 
 
1.
 An animal without a backbone is a(n)
_____.
 
2.
 The next level of classification below
phylum is _____.
 
3.
 The highest level of the classification
system is the _____ level.
 
4.
 A(n) _____ is the lowest level of
classification.
 
5.
 A(n) _____ is the second highest level
of classification.
 
6.
 An animal with a backbone is known
as a(n) _____.
 
7.
 To _____ an organism means to put it into a group.
  Class Animal
  Mammal  
  Reptile  
  Bird  
  Amphibian  
  Fish