Plants that attract hummingbirds often produce nectar that is high in sucrose. This is a key nutrient that supports a hummingbird’s high metabolism. Use the principles of natural selection to explain this trait in certain plants.

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.