Human reproduce by two parent, fern by spores and flatworms by both one and two parent reproduction.
Humans reproduce by mating of male and female. This is called two parent reproduction while on the other hand, flatworms reproduce both one parent and two parent reproduction.
Ferns do not produce flower and reproduce from spores. These spores are like seeds which germinate into a new fern plant.
So we can conclude that human reproduce by two parent, fern by spores and flatworms by both one and two parent reproduction.
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