(a) Mention the different phases in the life cycle of organism
(b) For which category of plants clear cut distinction between three phases is absent ?
(c ) Which phase involves structural and functional deterioration of body ?

Explanation

(a) Juvenile, Reproductive, Senescent phase
(b) In polycarpic plants, clear cut distinction between all the three phases is absent because in these plants flowering occurs at repeated intervals.
( c) Post-reproducctive phase/senescent phase.