What has a head, a tail, is brown, and has no legs?

Thunder does it Your hands do it Haters deserve it Antibiotics cure it You'll do it when you solve it

I hug tiny roots in a gentle embrace, I feed every seed in its snug little place.

Small in size but built to fly, I seek a targets watchful eye. Thrown by hand with careful art, I aim to find the very heart.

Worn by the rich elite, half a pair of glasses, singular lens symbol of wealth.