Yes, they have to get rid of their waste like other animals. They poop in mid-air so you wont see a dragonfly pooping easily.
deficate...
Yes they do.
Yes
yes
Yes you can
Its best to hold it in as long as possible
yes, they deficate.
Everything has cells. Does a bear deficate in the woods?
Dragonflies are invertebrates
Something you ate was rotten
Of course. Anything that takes food in has to get rid of waste.
what will happen is it can enflame your prostate and make it hard to deficate