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Diphtheria toxin is a classic AB exotoxin. How does it cause host cell damage?
Antheridia
Male reproductive structures in ferns, mosses, and some algae, which produce and release sperm.
Archegonia
Egg-producing structures, as in the moss life cycle.
Gametophyte
Haploid generation of the alternation-of-generations life cycle of a plant; produces gametes that unite to form a diploid zygote.
Alternation of Generations
A reproductive cycle of certain plants and algae that involves a regular alternation between two distinct forms: the sexual phase (gametophyte) and the asexual phase (sporophyte).
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