Multiple choice

In housefly, pseudotracheae is found in?

  1. Haustellum

  2. labellum

  3. rostrum

  4. None of the above

  5. -
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The labella is a complex structure consisting of many grooves, called pseudotrachea, which sops up liquids much like a sponge does. Salivary secretions from the labella assist in dissolving and collecting food particles so that they may be more easily taken up by the pseudotrachea.

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