Asexual reproduction involves a single parent to produce offsprings without the formation of gametes. It…
Asexual reproduction involves a single parent to produce offsprings without the formation of gametes. It occurs by the following ways : Fission, Budding, Fragmentation, Spore formation and Regeneration. In one of the methods like regeneration, Planaria A is cut horizontally into three pieces – L, M and N and Planaria B is cut vertically into two equal halves – O and P.
(a) Which of the cut pieces of the two Planaria could regenerate to form a complete organism ?
(b) Give an example of another organism which follows the same mode of reproduction as Planaria.
(c) What is the meaning of 'development' in regeneration ?
Solution
(a) All cut pieces of the two planaria will form a complete organism.
(b) Hydra
(c) Specialised cells proliferate to make a large number of cells.
This mass of cells change to make different cell types and tissues. These changes take place in an organised sequence and is called development.
