The movement of molecules down a concentration gradient through transport proteins in the cell membrane is a type of

What happens when a magniseum ion ia atracked to a chlrene ion

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.

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