Which of the following adds oxygen to the atmosphere? Select one:

a.
Deforestation

b.
Photosynthesis

c.
Precipitation

d.
Breathing

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.