Black seeds do not grow in your pores. It is simply dirt, known as a blackhead. You need to wash more thoroughly.
Flax grows from a flax seed.
It grows as fast as it says on the back of the seed pack
Plant Biology
No grass seed grows weeds, grass grows grass. The weeds that are popping up have most likely been there in seed form before you broadcasted grass seed on your lawn.
the oot always grows out first from any seed
The small pore on the seed generally form the micropyle.
seed
Yes broccoli grows from seed
A turnip is grown from seed.
A cactus grows from a seed.
cucumber
by soil