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Differentiate between the following:

(i) Red algae and Brown algae

(ii) Liverworts and Moss

(iii) homosporous and heterosporous pteridophyte

(iv) syngamy and triple fusion 

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(i) Red algae and Brown algae

 
Brown algae Red algae
(a) colour due to presence of fucoxanthin colour due to the presence of phycoerythrin rin. 
(b) Chlorophyll a,c are present Chlorophyll a, d are present 
(c) stored food mannitol and laminarin stored food Floridian, starch etc.
(d) cell wall is made up of cellulose and algin cell wall is made up of cellulose, pectin and polysuiphate esters
(e) unequal flagella are present flagella are absent

(ii) Liverworts and Moss

liverworts moss 
(a) gametophyte consists of single-stage gametophytes consists of two stages (Protonema and leafy stage) 
(b) Asexual reproduction is by fragmentation of thalli Asexual reproduction is by fragrnentation& budding in secondary protonema
(c) rhizoids are absent  rhizoids are present
(d) example: Marchantia example: Funaria polytrichum

(iii) Homosporous and Heterosporous pteridophyte

Homosporous Heterosporous pteridophy
(a) all spores produced of similar kinds pteridophyte two kinds of spores macro & microspores are produced
(b) majority of pteridophytes are homosporous Very few heterosporous pterido
(c) e.g.: Psilotum eg: selaginella, Salvinia

(iv) Syngamy and triple fusion

Syngamy Triple fusion 
(a) male gametes fuse with the egg cell male gamete fuses with diploid secondary nucleus
(b) zygote is produced tripioid primary endosperm nucleus is produced (PEN) 
(c) zygote is diploid PEN is triploid
(d) zygote develops into an embryo  PEN develops into endosperm which provides nourishment to developing embryo

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