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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.
The ph of urine can be quite variable. Why? Why is bromothymol blue used as a ph indicator instead of phenal red when titrating blood?
STIMULENT S - It makes a person more wakeful, alert and active. (i) Caffeine ( C 8 H 10 N 4 O 2 ) - It is 1,3,7-trimethylxanthine obtained from tea leaves ( Thea si
The non-oxidative phase generates ribose precursors The non-oxidative phase of the pathway, including the following reactions, converts pentose-5-phosphate to other sugars.
Determine the Symptoms of Shigellosis Symptoms: Pathogenicity involves the release of lipopolysaccharide endotoxin, which infects the intestinal mucosa. Shigellosis ranges fro
Question 1 What are dimorphic fungi? List the clinical manifestations produced by various dimorphic fungi. Add a note on isolation and identification of various dimorphic fungi
Question 1 A patient is admitted to the hospital with suspected pneumococcal pneumonia. How would you confirm this initial diagnosis? Answer the following questions a) Which is
The following histograms were produced using flow cytometry after labelling B-cell lymphocytes with propidium iodide. Histogram A is from a healthy individual while Histogram B is
outline the process of yeast fermentation stating all enzymes involved
What are retroviruses? How do they reproduce and what is the role of the enzyme reverse transcriptase? Retroviruses are viruses whose genetic material is RNA. HIV and the virus
Types of Community On the basis of size and degree of relative independence communities may be divided into two types: i) Major Community: These are large-sized, well org
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