LoL your Bro's is stubid, 99% of any bag you get well have seeds in it, no depending if the dealers feels like picking them out, thats he's deal, but i have has some of the TOP of the line shit befor, and i only get a 20 bag, and sure enough there was like 4 seeds in it.

to tell what type you got, check the color, the more Lite lime green it is the better (in most cases) and also the smell is a way of telling to, a stonger smell is a good sign.
But it's all ways a good idea to post a Picture if you ask a question like this.