Botulinum toxin (botox) is one of the most poisonous substances known. a few hundred grams is enough to kill every person on earth. botox causes paralysis in its victims. which neurotransmitter does botox most likely affect? .

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

Compare the composition of the moon's surface with the composition of the earth's surface.

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.