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1. 
How does Oxygen enter the body of a mammal?
A.
Lungs
B.
Gills
C.
Skin
D.
All of the Above
2. 
How does Oxygen enter the body of a Bird?
A.
Lungs
B.
Gills
C.
Skin
D.
All of the Above
3. 
How does Oxygen enter the body of a Reptile?
A.
Lungs
B.
Gills
C.
Skin
D.
All of the Above
4. 
How does Oxygen enter the body of a Amphibian?
A.
Lungs
B.
Gills
C.
Skin
D.
All of the Above
5. 
How does Oxygen enter the body of a Bony Fish?
A.
Lungs
B.
Gills
C.
Skin
D.
All of the Above