Christopher Scott Biol 241 homework Professor: Greg Crowther 1. Compare and contrast the reasons cell division is important for unicellular and multicellular organisms. Cell division is the method in which single celled organisms reproduce. Cell division allows multi-cellular to grow and repair dead or damaged cells 2. Provide an example of why cell division remains important to an adult organism even after it isfully developed. Some cells divide to heal wounds such as cuts or broken bones.
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Interventional Radiology (IR) is a fast growing and advancing radiology modality. With that growth comes new and innovative procedures‚ such as chemoembolization. With the introduction of chemoembolization for the treatment of‚ primarily‚ liver tumors‚ a question emerges; which radiologic modality is better: chemoembolization or traditional radiation therapy? While both chemoembolization and traditional radiation therapy have their benefits and obstacles‚ will chemoembolization be more effective
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Acinic cell carcinoma is believed to arise from progenitor reserve cells of the intercalated ducts of salivary tissue. Although characteristically slow growing with clinical behavior reflective of a low-grade tumor‚ acinic cell carcinoma can recur in 25—50% of patients if not treated adequately [Spafford et al‚ 1991]. A subset of acinic cell carcinomas are clinically more aggressive with metastasis to regional lymph nodes and distant sites‚ particularly the lung‚ at presentation. Histologic grading
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References: 1--Canfield‚ M. L.‚ and L. W. Moore. "Isolation and characterization of opine-utilizing strains of bacteria from rootstocks of Malus." Phytopathology 81.4 (1991): 440-443. 2--Kawaguchi‚ A.‚ et al. Biological control of apple tumors by nonpathogenic Rhizobium vitis. Journal of General Plant Pathology. Published online: 8 June 2012 3--Pinochet‚ J et al. “Response of low and medium vigor rootstocks for peach to biotic and abiotic stresses” International Society for Horticultural
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excess of secretions from the hormones can cause a tumor. A pituitary tumor occurs because excess of secretions becomes a growth and harms the regular functioning of the hormones or just too little secretes from the hormone. An excess of hormones is as bad as secretion of not enough hormones. Hypersecretion is an
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A Meningioma is a tumor of the central nervous system that develops from cells of the meninges (the Dura matter‚ arachnoid‚ and pia matter) and spinal cord. In most cases 90% of Meningiomas are benign (non-cancerous) and do not tend to spread out to the rest of the body or nervous system. These tend to grow at a very slow rate and usually show no symptoms until the tumor gets relatively large. This is due to the gradual compression of the brain over time. Although benign tumors are not cancerous
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Hindawi Publishing Corporation International Journal of Surgical Oncology Volume 2012‚ Article ID 861257‚ 12 pages doi:10.1155/2012/861257 Research Article Assessing Breast CancerMargins Ex Vivo Using Aqueous Quantum-Dot-Molecular Probes Giang H. T. Au‚1 Wan Y. Shih‚1 Wei-Heng Shih‚2 LinetteMejias‚3 Vanlila K. Swami‚3 KimberlyWasko‚4 and Ari D. Brooks4 1 School of Biomedical Engineering‚ Science and Health Systems‚ Drexel University‚ 3141 Chestnut Street‚ Philadelphia‚ PA 19104‚ USA 2Department
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ulcer-forming tumors. In Greek‚ this means crab because of the finger-like
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When a tumor is cancerous it is referred to as being malignant‚ which means they can spread into‚ or invade‚ nearby tissues. In addition‚ as these tumors grow‚ some cancer cells can break off and travel to other places in the body through the blood or our lymph system and form new tumors different from the original tumor it originated from. When a tumor is not cancerous it is referred to as benign tumors. Benign tumors do not spread or invade any other tissues. Benign tumors can sometimes
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Cholangiocarcinoma is a primary malignancy of the bile ducts. It is a rare and aggressive type of cancer that arises from the cells that line the ducts which carry bile from the liver to the small intestine. Most of these tumors are classified as adenocarcinomas‚ usually slow-growing tumors that can affect any area of the bile ducts and may extend along the length of the common hepatic duct and the common bile duct. According to Wikipedia‚ It has an annual incidence rate of 1–2 cases per 100‚000 in the
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