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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.
Many of the glyceraldehyde 3-phosphate produced by the Calvin cycle in chloroplasts is exported to the cytosol and used to produce the disaccharide, sucrose. 1 st the glyceralde
Etiology: This is the study of origin of diseases. In other words we can say etiology is the study of causation and origination. Etiology most commonly used in philosophical theori
Explain electrocardiography? What is meant by P-Q interval and S -T interval in electrocardiography? Mention two medical applications of this method.
What are the apical meristems? Which kind of plant growth does this meristem promote? The Apical meristems are those primary meristems found in the apex of the stem as well as
Genome wide association studies must account for the fact that covering the entire genome with marker loci will produce ______ associations between linked marker alleles and possib
Q. What is the difference between phanerogamic and cryptogamic plants? Cryptogamic (hidden sex organs) plants are those that do not present seeds or flowers. They comprise the
Phenolic compounds Gossypol: Gossypol is a toxic compound found in the cotton plant. It is concentrated in the cottonseed but can also be found in other parts of the cotton
Are the alleles of a gene essentially originated one from the father and the other from the mother? Are there exceptions? It is natural so that alleles have come one from the m
REPRODUCTIO N - It is not only production of new ones to increases its number but a means for the survival of a population on earth. Main aim is "survival and continuati
DIFFERENCE BETWEEN LIVING AND NON-LIVING BEINGS - S .No. C h a ra cte r L i v i n g be ings N o n - l i v i n g be
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