Which fossil few originates from the organic matter made of did marine organisms?

What would be an example of hypothesis for goldfish respiration lab

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.

How many types of rock can form from the rock cycle