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bilateral - metazoabilaterally symmetrical animals have the major axis running from head anterior to tail posterior they have a ventral lower and
radial and biradial-metazoaradial symmetry is the symmetry in which the parts are so arranged around a central axis or shaft like the spokes of a
asymmetrical and spherical - metazoasome creatures are asymmetrical no matter which way we try to divide them through the middle no two halves would
characteristics of metazoathe unicellular protozoans are highly versatile and successful organisms that show remarkable organization and division of
phylum placozoathe phylum placozoa contains a single species of a minute marine animal trichoplax adharens composed of a dorsal and ventral
metazoain the two kingdom classification the unicellular animals used to be clubbed together under a single phylum protozoa that constituted
life cycle of parasite - protozoanthe life cycle of the parasite in man begins when an infected mosquito while biting and taking a blood meal injects
sporozoans ndash protozoansporozoans of the genus plasmodium are responsible for causing a serious human disease malaria they are among the best
trypanosomes ndash flagellatesthe trypanosomes are among the serious pathogens that cause high mortality among human populations and domestic animals
amoebae- parasitic protozoanthe amoebae of the genus entamoeba vary in their biology entamoeba histolytica or the dysentery amoeba occurs as a
parasitic protozoanout of the thousands of species of protozoa the majority are free living however many species from within the phyla
phylum ciliophora - protozoansimple cilia or compound ciliary organelles typical in at least one stage of life cycle subpellicular cilia present even
classification scheme of protozoaphylum myxozoa parasites of lower vertebrates especially fish and invertebratesphylum microspora parasites of
phylum apicomplexa - protozoancharacteristic set of organelles apical complex asssociated with the anterior end present in some developmental stages
phylum labyrinthomorpha - protozoantrophic stage ectoplasmic network with spindle shaped or spherical nonamoeboid cells small group living on algae
subphylum sarcodiha pseudopodia typically present flagella present in developmental stages of some species free living or parasiticsuperclass -
subphylum opalinata body covered with longitudinal rows of cilium like organelles but true ciliature absent parasitic cytosome lacking two to many
subphylum mastigophora one or more flagella present in adult stages autotrophic or heterotrophic nutrition reproduction usually asexual by
phylum sarcomastigophora locomotory organelles - flagella pseudopodia or both types usually with one type of nucleus typically no spore formation
amoeboid protozoanamoeboid protozoan are distinguished by the presence of flowing extensions of their body known as pseudopodia these are used for
flagellated protozoanthese are protozoan that move by means of one or more flagella and include the largest number of species about 6800 asexual
classification of protozoatraditionally protozoans have been classified as flagellates amoebae sporozoans and ciliates we have retained this broad
encystment ndash protozoanencystment is characteristic of the life cycle of many protozoan the protozoan secretes a thickened envelope cyst around
syngamy - protozoanthe two gametes may be morphologically similar isogametes or dissimilar anisogametes the gametes also vary in form they may be
mechanisms for response ndash protozoanprotozoa are sensitive to many kinds of stimuli like touch temperature changes light chemicals etc it is not