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Q. Explain about Gastric ulcers?
Gastric ulcers occur in the lesser curvature of the antrum of stomach. A gastric ulcer appears to be caused by reflux of bile and factors that disrupt the mucosa barrier permitting the hydrogen ions to diffuse into the mucosal tissue where they cause damage. The damage causes cell destruction and subsequent ulceration (due to defect in pyloric sphincter). NSAID dramatically increase the risk of ulcers and is related to the systemic inhibition of prostaglandin production. Thus results in impaired defense against acidity by the gastric mucosa. Another pathogenetic factor is H. Pylori infection and the resulting impaired mucosal defence.
Q. Classification of plant on the basis of their resemblances? Pliny seemed to have little interest in the classification of plant on the basis of their resemblances. He classi
Q. Scheme of Classification of phylum hemichordate? These are about 90 species of hemichordates. All are marine and live in the open sea or in muddy sediments. Hemichordata wer
What is a population? The population is a set of individuals of the same species found in a given place in a given time.
Define about the Sporocyst Larva? Sporocyst is the second larval stage in the life cycle of F. hepatica. It develops from the miracidium larva within the pulmonary chamber of
Which of the following best explains the reason why DNA ligase is needed to complete the replication of internal chromosomal segments? A. DNA ligase is able to delete the last
What is Metachronal wave? Describe. During the coordination of the ciliary movement, bands, or groups of cilia, are at different stages of their beating pattern, and this creat
Q. What is the criterion used to classify hosts as intermediate hosts or as definitive hosts? The criterion used to categorize hosts as intermediate hosts or as definitive host
Describe two pieces of evidence indicating that speciation does not always occur at the same rate. Some species of moths on the Hawaiian Islands appear to have evolved during t
how do flatworm and round worms respire?
Which of the following serves as an actuating signal, or as part of an actuating signal, in a negative feedback system? A. Blood plasma levels of Glucose. B. Blood plasma le
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