Other questions in this quiz

2. 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

3. where does the water from the gills travel to after this?

  • down the oesophagus
  • out of the operculum
  • to the gills

4. Bony fish have gill arches, where are these located?

  • by either side of their head
  • just below their fins
  • on their abdomen

5. What is the benefit of narrower tracheoles? (insect)

  • Shorter diffusion distance to each cell
  • larger surface area
  • larger surface area to volume ratio

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