1. why are there rigid rings in the trachea on an insect?
- to replace the absent cell wall
- to keep air passages open
- to keep cells rigid
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Other questions in this quiz
2. Air enters an insect through holes called
3. Where do the entrance holes take the air to in an insect?
- the aleoli
- the lungs
- trachea and then into tracheoles
- the alveoli
4. What system is in place in the fish in order to maintain a diffusion gradient?
- counter-current system
- pulmonary ventilation system
- inhalation maintenance system
5. Where these entrance holes located on the insects body
- In their mouth
- Along the side of their body
- By their rectum
- All over the body
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