Answer:
Small piece of its body.
asexual reproduction.
Step-by-step explanation:
Flatworms is also reproduce by multiple fission. The body of flatworms splits into small pieces and each piece becomes a new individual. Asexual reproduction is a type of reproduction in which a new organism is formed from a single parent which is identical to that parent and no variation in size and shape of offspring. examples of asexual reproduction are binary fission, multiple fission, segmentation and budding.