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Tlie phylum Cnidaria or Coelenterata, includes the faliiiliar hydras, jelly fishes, sea anemones and corals. You have olreacly studied about Cnidarialis in Units 4 and 7 of LSE-09 course. These are often brilliantly colourcd. They exhibit radial symnietry, The Cnidarians possess two basic metazoall structural features. Onc, there is an intenla1 space for digestion, called in Cnidarinns as gastrovascular cavity. This cavity lies along the polar axis of the animal atid opens to tlie outside at one end to for111 noutli, Tlie presence of a mouth a~id digestive cavity permits the use of a mucll greater rnlige of food sizes than is possible in tlie protozoarls and sponges. Two, in Clidariails a circle of tentacles, representing exte~lsiolls of the body wall, surrounds tlie ~lioiltli to aid in tlie capture and ingestion of food. Tlie Cnidarian body wall consists of three basic layers: an outer lnycr of cpidennis, nn inner layer of elidoder~nal cells lining Ilie gastrovnscilar cavity, and between these two a layer called mesoglea. The rnesoglea ranges from n tliin, non cellilar membranc to a thick, fibrous, jelly-like, coid lnaterial with or without wanderillg a~noebocytes, A considerable number of different cell types compose tlie epidermis and gastrader~nis, but there is only a limited degree of organ development.
Why must our cells duplicate the DNA molecules before they divide in Mitosis? Why do chromosomes condense by wrapping around the histone protiens durning the cell cycle?
Explain amino acid composition In terms of amino acid composition, high radiation doses such as those required for sterilization (e.g. 25-27Kgy), do not change the content of c
E g g drop syndrome-76 (EDS-76) An outbreak of sudden drop in egg production or a failure to achieve a normal peak in production despite optimum managemental and nutrition st
Define the Incubator - Food Microbiology? The growth of the microorganisms is altered by the chemical and physical nature of its surrounding. Most important environmental featu
Q. Differentiate between adult and infant botulism? • Adult Botulism is prevalent amongst adults whereas Infant Botulism is prevalent in infants of less than one year of age.
Influence of LV Function : LV functions, whether normal or impaired is important while selecting a patient for CABG and for long-term results of surgical revascularisation. If le
What should be the minimal distance between the implants or an implant and a natural tooth. The minimal distance between the implant and the adjacent tooth should be 1.5 -2 mm
Pseudocoelom - Metazoa The platyhelminths which do not have a body cavity surrounding the gut, have a solid type of body constitution. The mesoderm completely fills the space
Define the HTST Pasteurization Method? Rapid, high pasteurization is characterized by a pasteurization time in the order of seconds and temperatures of about 85° to 90°C or mor
what are the two alternate pathways to glycolysis
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