Match the pairs of types of asexual reproduction.

Section-A	Section-B
(1) Fission	(i)   Spirogyra
(2) Fragmentation	(ii)  Paramecium
(3) Regeneration	(iii) Mucor
(4) Spore-formation	(iv) Planaria

In Spirogyra, asexual reproduction takes place by

In Spirogyra, asexual reproduction takes place by fragmentation.

In the context of reproduction of species state the main difference between fission and fragmentation. Also, give one example of each.

Which of these break up into smaller pieces upon maturation

The organism which reproduces by the method of fragmentation is

Lila observed that a pond with clear water was covered up with green algae within a week. By which method of reproduction did the algae spread so rapidly? 

Which among the following is the mode of reproduction in unicellular organisms?