There r 2 types of fission.
binary n multiple fission.
binary fission - it is a kind of sexual reproduction shown by unicellular organisms
like bacteria n protozoans like amoeba where a single cell divides to produce 2 daughter cell.
multiple fission - in the malarial parasite plasmodium the single parent cell simultaneously divide into many daughter cells.
budding - in hydra , a bud develops as an outgrowthdue to repeated cell division at one specifi9c site.
the buds develop into tiny individuals and when fully mature detach from the parent body and becomes new independent individual.
HOPE IT CAN HELP U :)