Why do the polypeptides made in prokaryotes always contain formyl methionine as the first amino acid?

How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.

What is the most common structure of volcanoes?

Which factor is difficult to assess in a cost-benefit analysis