Question

Fill in the blanks
1. The ................is commonly called the windpipe.
2. In most vertebrates, gaseous exchange occurs through..............?
3. Fish respire through...............
4. The air in the alveoli is called................ air.
5. During...................the lungs contracts.
6. Below the rib cage, there is a sheet of muscles called the.......................?​

Answer 1

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1. The trachea is commonly called the windpipe.

2. In most vertebrates, gaseous exchange occurs through lungs or skin ?

3. Fish respire through gills.

4. The air in the alveoli is called oxygen air.

5. During breathe in, or inhale the lungs contracts.

6. Below the rib cage, there is a sheet of muscles called the diaphragm.

Answer 2

Answer:

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