A filamentous alga X is found is ponds, lakes and slow-moving steams. The filament of this alga simply breaks onto two (or more) pieces on maturing and each piece then grows to becomes a complete new alga.
(a) Name on alga which X is likely to be.
(b) What is the colour of X ?
(c) What is the method of forming new algae by the breaking of parent alga known as ?
(d) An Amoeba also breaks up to from two daughter Amoeba. What is the difference in splitting of Amoeba and splitting of this alga as a method of reproduction?
(e) Name one marine animal which reproduces in the same way as alga X

Answer

(a) Spirogya (b) Green (c) Fragmentation (d) The binary fission in Amoebda is a reproduction process which takes place in unicellular organisms; Fragmentation in alga is a reproduction process which takes place in simple multicellular organisms (e) Sea anemone