| 1. | Fish | (A) | Lungs |
| 2. | Humans | (B) | Spiracles |
| 3. | Earthworm | (C) | Gills |
| 4. | Insects | (D) | Thin, moist skin |
A) 1 - C, 2 - A, 3 - D, 4 - B
B) 1 - D, 2 - B, 3 - C, 4 - A
C) 1 - B, 2 - C, 3 - D, 4 - A
D) 1 - D, 2 - A, 3 - C, 4 - B
E) None of these
Correct Answer: A
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