Why budding, fragmentation and regeneration all are considered as asexual types of reproduction? With neat diagrams explain the process of regeneration in Planaria.
Ans.
Asexual reproduction is uniparental and it does not involve gamete formation and fertilization. As fragmentation, budding and regeneration none of these involves gamete formation & fertilization, and all of them produce individuals from single parents only hence these are considered as asexual reproduction.
Regeneration is asexual reproduction in which organism has the ability to regenerate the lost (or) damaged body parts, for example, if a planarium is cut into small pieces then each piece develops into a new individual.