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1. 
Vertebrate animals....
A.
have a backbone inside their bodies.
B.
don't have a backbone inside their bodies.
C.
are all mammals
D.
have a segmented body
2. 
Invertebrates...
A.
have a backbone inside their bodies.
B.
don't have a backbone inside their bodies.
C.
all have wings.
D.
have feathers.
3. 
How many legs do insects have?
A.
4
B.
6
C.
8
D.
10
4. 
How many legs do spiders have?
A.
4
B.
6
C.
8
D.
10
5. 
There are ______ vertebrate groups.
A.
3
B.
4
C.
5
6. 
What are the vertebrate groups?
A.
Mammals, birds, and reptiles.
B.
Mammals, birds, arthropods, molluscs, and fish.
C.
Mammals, birds, reptiles, amphibians, and fish.
D.
Arthropods, molluscs, and worms.
7. 
What are the invertebrate groups?
A.
Mammals, birds, and reptiles.
B.
Arthropods, worms, and molluscs.
C.
Insects and spiders.
D.
Mammals, birds, reptiles, amphibians, and fish.
8. 
Mammals...
A.
have feathers
B.
have wet skin
C.
have scales
D.
are viviparous
9. 
Birds...
A.
have feathers
B.
have wet skin
C.
have fins
D.
are viviparous
10. 
Reptiles...
A.
have fins
B.
have wet skin
C.
have scales
D.
have feathers
11. 
Fish...
A.
have fins
B.
are viviparous
C.
have feathers
D.
have wet skin
12. 
What kind of body does an arthropod have?
A.
a soft, muscular body.
B.
a segmented body.
C.
a long, soft body.
13. 
What kind of body does a worm have?
A.
a soft, muscular body.
B.
a segmented body.
C.
a long, soft body.
14. 
What kind of body does a mollusc have?
A.
a soft, muscular body.
B.
a segmented body.
C.
a long, soft body.