We need them because they eat mosquito's and other small insects.
yes , they need to fly
they dont need help
yes
No, they don't have an antennae.
All living organisms need to excrete waste, as this is one of the characteristics of life. When they are alive, dragonflies excrete waste.
25
You'd need to say who it is by or quote some lyrics for an answer
Yes, their larval stage is entirely aquatic.
Dragonflies are invertebrates
because they would need them if they broke there other two wings
The ancestors to the dragonflies was the Protondonata. These were the 1st winged insects on Earth and the earliest form of dragonflies.
A Fetch of dragonflies.