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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.
What is Micro-Endodontic Surgery? Combines of the magnification and illumination provided by the microscope with proper use of new micro-instruments.
Post removal Types of post : -Active threaded -Passive -Custom casted Cement used : -Traditional cement -bonded with a composite resin -Dentin-bonding agent -Pro
Explain Indications of Root-End Filling (REF) Retrofilling a. Persistent periapical pathosis resulting from an inadequate apical seal that cannot be corrected nonsurgically,
Why is the cartilage more flexible than bone? in general, why does cartilage take longer to repair than bone?
Q. Explain False Positive Tests? As ST depression has been equated with CAD, patients with this finding who have less than a critical coronary narrowing has been called false p
Q. What are some symptoms and signs found in patients with hyperthyroidism? The hormones made by the thyroid gland stimulate the basal metabolism of the body in hyperthyroidism
Reproductive health disorders to dairy livestock accounts to a loss of about Rs 30,000- 50,000 crore annually to the nation. Better herd management can minimize the occurrence of d
What classifies an animal into the Echinodermata phylum?
How does the universality of the genetic code make the recombinant DNA technology possible? The universality of the genetic code refers to the fact that all living beings have
Define Endocrine or Hormonal Disorders - Infertility Infertility can be caused by endocrine disorders, long-term sequelae of sexually, transmitted infections, puerperal sepsis,
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