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the five kingdom systemsto cope up with above discussed problem a number of alternative classificatory schemes have been suggested with more than two
what are three main problems with having only two kingdomsthere are three main problems with having only two kingdoms the first problem concerns the
taxonomic hierarchythe sheer complexity of organisms seems so bewildering that some people believe life to be unfathomable by the rational mind
explain process of selection of taxonomic characters selection of taxonomic characters eventually classification systems may be based almost entirely
what are taxonomic characters taxonomic characters classification is done on the basis of information we have more information gives better
omnispective classificationthis is the extension of the concept of natural classification put forward by black welder 1967 the approach seems quite
evolutionary classificationevolutionary classification combines aspects of both phenetic and cladistic systematic evolutionary taxonomists attempt to
phylogenetic or cladistic classificationphylogeny plays a great role in classification it is the appropriate theoretical background for taxonomy
natural classificationnatural classification is based on the natural characters of the taxa some consider natural classification a phylogenetic one
phenetic classificationthis system is based exclusively upon face value of observed characters without direct reference to phylogeny the taxa are
explain several biological classification of animalsthere are several biological classification of animalsthere are i phenetic classificationii
the goals of biological classification the world of animal diversity is quite complex and it requires an ability to recognise similarities and
q what is the prothallus of pteridophytesthe gametophyte develops by mitosis from a spore and prothallus is the pteridophyte gametophyte the haploid
q what is the structure of the adult fern within which cells undergoing meiosis can be foundin these plants meiosis takes place within structures
q why are pteridophytes more common in humid placespteridophytes are more common in humid places since they depend on water for their gametes to
q what is the kind of life cycle present in pteridophyteslike all plants pteridophytes present diplobiontic alternation of metagenesis or generations
q what are the major parts of fernsferns are constituted by small roots that come downwards from the rhizome stem and often horizontalized the fronds
q what is the evolutionary importance of pteridophytesas the first pteridophytes tracheophytes were also the first plants to extensively colonize the
q why are pteridophytes better adapted to dry land than bryophytes were pteridophytes always less abundant than phanerogamic plantsalthough
q how different are pteridophytes from bryophytes regarding substance transportpteridophytes are tracheophyte vascular plants that are they have
q what are the major representatives of the pteridophytes is this plant group phanerogamic or cryptogamicthe better known pteridophytes are the ferns
q why can the bryophytes be considered the amphibians of the plant worldlike adult amphibians the bryophytes live in the terrestrial environment but
q generally where is the sporophyte positioned in relation to the gametophyte in bryophytes how does the sporophyte obtain nutrientsthe bryophyte
q what is the life cycle type of bryophytesas in all plants the life cycle of bryophytes is diplobiontic alternation of generations and in bryophytes
q how is the transport of substances done across the bryophyte tissues how is this feature related to the general size of these plantsin bryophytes