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DIFFERENCE BETWEEN ASEXUAL AND SEXUAL REPRODUCTION.

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   Difference between asexual and sexual  reproduction Asexual reproduction     This is a type of reproduction is uniparental. _  In this process there is no requirement of sex organ. _ In case of asexual reproduction there is no fertilization. _.In case of asexual reproduction there is no zygote(2n) formation. _ In case of asexual reproduction more number of individual are produce. _ It is a simple process. _ The asexual reproduction is completed with in a short period of time. _ In case of asexual reproduction the individual which are of the parental type. _ The asexual reproduction in generally seen in lower animal. SEXUAL REPRODUCTION _  This is a type of reproduction is bi parental type. _ In this process there is the requirement of sex organ. _ In this process there is formation of gametes. _ In case of sexual reproduction there is zygote (2n) formation. _ In case of sexual reproduction less number of individual are produce...
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                                                     FRITCH CLASSIFICATION Acroding to fritch classification the alge   are different types Such as- (1) chlorophyceae                  (2) rhodophyceae                  (3) cyanophyceae                  (4) xyntophceae                  (5) pheophyceae                  ...
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                                   VEGETATIVE STRUCTURE AND ANATOMY OF NOSTOC OCCURRENCE OF NOSTOC * IT IS FILAMENTS FROM OF BOTH TERRESTRIAL AND  AQUATIC HABITAT. * IT DOES NOT OCCUR IN SIMPLE FILAMENT BUT GROW IN LARGE COLONY OF CLOSELY PACKED TRICHOME. * THE TRICOME ARE EMBEDDED IN MATRIX GILATINOUS BACTERIA. * THE THALI ARE UP OF VARIOUS SIZE AND SHAPE AND MAY BE SOLID OR HOLLOW. * IT SIZE THEY ARE MICROSCOPIC P-SIZE OR AS LARGE AS PLUMB. * THE COLOR MAY BE OLIVE GREEN OR BLUE GREEN. STRUCTURE OF THE COLONY * THE CHAINS OF THE TRICOME OF VARYING LENGTH OF TANGELED IN GILATINOUS MATRIX TO FORM A COLONY. * EACH TRICOME IS USUALLY ENCLOSED BY IT S OWN MUCILAGINOUS SEATH AN IS CALLED AS FILAMENT. * EACH COLONY APPEARS LIKEN BLUISH GREEN OR YELLOW MASS IN JELLY. * YOUNG COLONY ARE SMALL AND MICROSCOPIC BUT THE MATURE ON LARGE. STRUCTURE OF THE TRICHOME * TRICOME ARE MORE CROWDED ...
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                                VEGITATIVE STRUCTURE 
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                                                       WHAT IS EVOLUTION Evolution is a slow and continuous process by a similar life from are converted into complex form
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CELL DIVISION

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* Cell division is a process by which new cell are originated from pre existing cell. * cell division is divide into two types.       (1) Mitosis       (2) Meosis
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CHARACTERSTIC OF ALGE

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* It is an important group of thalophyta. * The word thalophyta is coming derive from 2 Greek word thalous means sprout and phylum means plant. * The term alge is coming from Latin word which means seaweds. The term alge introduced by linaus in 1753. * The plant body of alge differentiated into leaf stem and root. * The plant body is thalus like structure. * The plant body may be unicellular or multicellular. *Almost all the alge aquatic in nature. * They contains chlrophill pigment. * The sex organ is unicellular and non jacketed. * Water is not needed for fertilization. * No embryo formation takes place. * They autotrophic mode of neutration. *Eg- Nostoc, volvox,ectocatcus etc 
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