1) FRAGMENTATION: It is an asexual method of reproduction. The breaking up of a body of a simple multicellular organism into two or more pieces on maturing, each of which subsequently grows to form a complete new organism, is called Fragmentation. The breaking up of an organism occurs only when the parent organism is mature.
2) BUDDING: It is an asexual method of reproduction. In Budding, a small part of the body of the parent organism grows out as a 'bud' which later detaches and becomes a new organism.
3) SPORULLATION: It is also and asexual method of reproduction. In Sporullation, the parent produces hundreds of microscopic reproductive units called 'spores'.