Answer:
I tremble at each breath of air, and yet can heaviest burdens bear.
I love to dance and twist and prance. I shake my tail, as away I sail. Wingless I fly into the sky.
I am mother and father, but never birth or nurse. I'm rarely still, but I never wander.
It's anything but amusing when this body part gets hit.
Green arrows grow out of my sides. I go from yellow to white. My babies fly in the wind. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?