Reproduction mode in unicellular organisms:
(i) Asexual reproduction takes place in unicellular organisms like fission, budding etc.
(ii) Only one organism is required in this method.
(iii) No special cells and organs are present for reproduction.
Reproduction mode in multicellular organisms:
(i) Sexual reproduction takes place in multicellular organisms.
(ii) A male and a female both are required in this method.
(iii) Special cells and special organs are present for reproduction.