According to the research, flatworms are a type of worm characterized by a flat, non-segmented body and bilateral symmetry.
It is an organism lacking vertebrae that has the characteristic of being acoelomate protostome and triblastic.
It is characterized by presenting bilateral symmetry, this implies the division of the organism into a right half and a left half, separated by an axis.
Therefore, we can conclude that according to the research, flatworms are a type of worm characterized by a flat, non-segmented body and bilateral symmetry.
Learn more about bilateral symmetry here: https://brainly.com/question/1952940
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