How can Marine Scientist solve environmental problems? Please help me

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 compliment dna strand to the following sequence: ttgactaggcta

What element is able to combine with itself and hydrogen to form large molecules ?