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Biology Essays

Result for Subject Biology:
3614 essays
Our Stolen Future Biology Term Paper
5 pages (1631 words) , Download 2 , Term Paper
Free
Authors used as bases in this assertion the experiments done in the 1930s by British scientists which used female rats as objects of the study by injecting estrogen into pregnant rats.  The experiment yielded information that demonstrates physical deformities that are evident in its internal and external physiology. 
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Impact of DNA damage induced by anticancer drugs on both S phase and mitosis phase of the cell cycle Biology Essay
4 pages (1000 words) , Download 2 , Essay
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Many genetic changes happen when a normal cell is converted to a cancer cell (Hartwell & Kastan 1994). In a carcinoma cell the normal order and the functions of a cell are impaired and the usual limits of cell division are ignored. This condition may arise as a result of a mutation / change of the genetic sequence or due to DNA damage and it is important to note that the ‘growth fraction’ (ratio of proliferating cells to cells in resting stage) is remarkably high in carcinoma cells than in normal cells (Eidukevicius et al.
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Men an Endangered Species Biology Essay
4 pages (1000 words) , Download 3 , Essay
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Various studies indicate that there is an increase in the decline of men power of fathering children. In addition, these studies indicate that in about three decades ago, more male babies were being born compared to female babies. However, this trend seems to change and the number of born male babies is gradually declining.
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Hammerhead Sharks Biology Research Paper
4 pages (1000 words) , Download 3 , Research Paper
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Name of Student Name of Professor Course Name 23 July 2011 Hammerhead sharks Hammerhead sharks are unique among all elasmobranchs because of the presence of a laterally expanded and dorso-ventrally compressed head which looks somewhat like a flattened hammer.
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Stages of Yellow Fever and How to Prevent It Biology Essay
4 pages (1121 words) , Download 5 , Essay
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The disease gets the term yellow by causing yellowing of the eyes and skin related to liver damage (PHAC 2010, WHO 2011). It is a small virus that contains single-stranded RNA encapsulated by a lipid membrane (Robertson 1993) and can be rendered inactive by “lipid solvents (ether, chloroform), heat (56 degrees Celsius for 30 minutes), and ultraviolet light” (Robertson 1993, p 1, 3).
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Psoriasis in adults Biology Research Paper
8 pages (2000 words) , Download 4 , Research Paper
Many people often confuse psoriasis with other common skin diseases. In other cases, the onset of the condition might be mild such that many people do not realize that they have the condition. As a result, several environmental and behavioral aspects trigger the condition and it becomes severe.
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Ocean Biome: Ocean Plant Energy Flow Biology Research Paper
4 pages (1000 words) , Download 3 , Research Paper
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According to the report ecological succession and climax vegetation often become the features of biomes and a biome is not defined in terms of genetic, historical, or taxonomic similarities unlike in the case of ecozones. In addition, a biome is a major habitat type and it has an intrinsic inhomegeneity.
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Tuberculosis in HIV infected patients Biology Essay
4 pages (1000 words) , Download 2 , Essay
Hence, its management is only in relation to its symptoms and separate signs, when and as they manifest. Due to the compromised immune systems of HIV-AIDS patients, they are very much vulnerable to opportunistic infections, including tuberculosis, pneumonia, and similar infections.
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The Discovery of the Theory of Natural Selection by Darwin Biology Research Paper
5 pages (1250 words) , Download 3 , Research Paper
Free
Natural Selection (name) (school) The Discovery of the Theory of Natural Selection by Darwin Introduction Since the dawn of civilization, man has tried to explain his existence and the development of all living things. Various theories have been established by scholars and philosophers and these theories have established various explanations and schools of thought on the existence of man and of the universe.
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Gene Therapy, Safety Concerns and Improving Safety Methods Biology Essay
5 pages (1366 words) , Download 2 , Essay
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Gene therapy is a method of treating various acquired and genetic diseases with genes. This is an experimental technique and is done by inserting genetic material into the patient’s cells. In this form of treatment, the diseases are either treated or prevented by replacing abnormal genes, or by introducing the absent gene, or supplementing the defective gene.
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He similarities and differences between autosomal recessive and sex-linked recessive conditions Biology Essay
15 pages (3750 words) , Download 2 , Essay
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Only offspring with both recessive alleles, meaning both parents are heterozygous carriers of the recessive genes will be affected. These disorders are present in only about 2.5 per 1000 live births, and will not be manifested is the offspring receives a dominant allele from either parent
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Biodiversity Conservation Biology Research Paper
6 pages (1500 words) , Download 2 , Research Paper
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Biodiversity Conservation Name Course: Instructor: Date: Abstract Biodiversity refers to the variety and assortment of various life forms in the environment. This includes the variety of plants and animals in various ecosystems including marine ecosystems, forest ecosystems as well as grasslands.
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Molecular Cascade and Upstream / Downstream Processing Biology Research Paper
2 pages (500 words) , Download 2 , Research Paper
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From this paper it is clear that how the information in DNA is utilized is summarized in the central dogma of molecular biology. It starts with DNA replication, in which the chromosomes accurately make copy of themselves to prepare for cell division, whose steps are clearly visible even through a light. 
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Radiation and Cancer or Causes of Cancer Biology Research Paper
5 pages (1250 words) , Download 2 , Research Paper
Researchers have divided the causes of cancer into two: hereditary genetic causes and environmental causes (Kinzler & Vogelstein, 2002). Reproduction of cells is extremely a complex process which is strictly regulated by different classes of genes like tumor suppressor genes and ontogenesis.
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Biodiversity and Ethno botanist Exploitation by Pharmaceutical Companies Biology Essay
9 pages (2250 words) , Download 3 , Essay
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According to the paper traditional herbalists and ethnobotanists have been in existence in various society since time immemorial. Pharmaceutical companies commonly tap into the wealth of knowledge that ethnobotanists and traditional herbalists have without compensating them adequately, only using this information to enrich themselves with gross disregard to property rights and common good.
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The Ecology of Energy and Nutrient Fluxes Biology Article
3 pages (750 words) , Download 2 , Article
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This study successfully examines the effect of insect infestation on nutrient and energy flux, there is a need to examine their effect on the magnitude and direction of the matter and energy flow in such an ecosystem. Further studies that consider population ecology while analyzing the nutrient and energy flow are also recommended.
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The Scientific Method Paper Biology Case Study
3 pages (750 words) , Download 5 , Case Study
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A standard process of questioning and analysis is followed to obtain data to test a hypothesis or educated guess. Scientists all around the world follow this same procedure to test questions about natural phenomenon.
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Causes of Stomach Ulcer Biology Research Paper
7 pages (1750 words) , Download 3 , Research Paper
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CAUSES OF STOMACH ULCER Abstract Grasp the factors of stomach ulcer to improve the competency of appropriate medication is the matter of solicitude for a biomedical scientist, doctors and allied health officers. The attribute of silent killing until maturation, is the most threatening attribute of stomach ulcer.
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Ebola as One of Todays Most Deadly Viruses in the World Biology Essay
5 pages (1442 words) , Download 2 , Essay
Free
Even though only just over a thousand people have died from Ebola since the virus was discovered, it is still considered one of the deadliest diseases in the world. This is because of the usual horrific experience someone goes through before dying of the disease. This paper will discuss the Ebola virus and its history.
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Orthomyxovirus (influenza) Biology Research Paper
3 pages (750 words) , Download 3 , Research Paper
Abstract Influenza viruses as noted by Wilson and von Itzstein are exceptional in the manner in which they cause recurrent epidemics that varies in their severity (165). These viruses have in past cause global pandemics that results in respiratory infections affecting people of all ages including children.
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A scientific journal.. The paper that I choose was ESA Promoting the Science of Ecology Biology Article
3 pages (750 words) , Download 3 , Article
Free
However, the process of degradation and interface between the two organisms are yet to be established. Romani et al. conducted a study to compare the growth, enzyme production and synergistic or antagonistic interactions by both organisms (2006). The research was done with fungi and a bacterial colony inoculated on Phragmite leaves, which were either sterilized or non-sterilized.
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Giving up densities of rabbits Biology Research Paper
4 pages (1000 words) , Download 2 , Research Paper
The purpose of this study was to experiment the natural habitat of the cottontail rabbit. “Rabbits are generally active day or night year-round, but they tend to be most active during the first two to four hours after sunrise and before sunset,” Cottontail Rabbit, (1).
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Fungi and Medicine Biology Case Study
3 pages (750 words) , Download 2 , Case Study
Kingdom Fungi is one of the five kingdoms that classify all the living organisms in this world. There are more than one million different species of fungi found on the planet. Fungi are found everywhere, from the dust in the air to the rocks present underwater.
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Biology - Plant Diversity Biology Essay
4 pages (1000 words) , Download 4 , Essay
Rhyniophyta Flora belongs to a division of vascular plants and is associated with the class Rhyniopsidia. They were known to lack vascular tissue and cannot be included in the group that is monophyletic. This was the first known flora. Currently this group of flora includes species from other generas such as Huvenia, Rhynia and Stock mansella.
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Cell Adhesion Practical Biology Term Paper
4 pages (1000 words) , Download 3 , Term Paper
Free
Taking the very same reaction, a simple substitution of similar volumes of integrins for cadherins and collagenase-3 for trypsin would have the desired effect. This experiment would help illustrate both the adherence properties of integrins and the ability that collagenase-3 has to halt these reactions and produce single-cells within the matrix. 
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Molecular Identification of DMS-Producing Bacteria Isolated from Marine Algae Biology Dissertation
3 pages (750 words) , Download 2 , Dissertation
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DMS is derived from dimethylsulfoniopropionate, a secondary metabolite produced by many marine algae and phytoplankton. DMSP is converted to DMS by virtue of the lyase and CoA-transferase pathways exhibited by many fungi and bacteria.
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The role of Tropomyosin in Zebrafish development Biology Dissertation
3 pages (750 words) , Download 2 , Dissertation
They are the one moving the actin filament through generating force by elongating one end of the filament coupled with shrinkage of the other, causing net movement of the intervening strand.
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Attraction and mating Biology Essay
3 pages (750 words) , Download 3 , Essay
Attraction is broadly understood as the process wherein these individual creates attract the opposite sex organism that they will copulate with in the act of mating.While these are broad understandings of this terminology,there is also a large amount of scientific research that goes into understanding these elements in terms of the differences and specific elements within species
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The Concept of Homeostasis Biology Essay
5 pages (1474 words) , Download 5 , Essay
Free
Homeostasis is maintained by stimulus identification at the tissue level with the help of sensors present in the skin and sensory organs. The process through which a constant internal environment (homeostasis) is maintained is known as a homeostatic mechanism. Homeostatic control in the body is achieved through a feedback system which may be a negative feedback loop or a positive feedback loop.
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Clostridium Tetani - Infection with C Tetani Biology Essay
5 pages (1714 words) , Download 2 , Essay
Free
Clostridium tetani is an obligate anaerobe and don’t grow in the presence of oxygen. The optimal conditions for growing this bacterium are a temperature of 37 degrees Celsius, with a PH of 7.4. It grows on different nutrient media including agar enriched with blood. When cultivated on agar enriched with blood it manifests alpha hemolysis, but with prolonged cultivation, it produces beta hemolysis.
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The Dangers of Alcohol Consumption Biology Essay
2 pages (500 words) , Download 4 , Essay
Free
The latter in particular is often seriously affected by alcohol. It has been said that consumption of the drink in small quantities may assist the removal of ‘plaque’ from arteries; however, this appears minor compared to the many diseases that alcohol consumption can cause, from minor ailments to serious diseases.
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The Effects of Postural Changes, Exercise and Cognitive Stress on Human Arterial Pressure and Pulse Rate Biology Essay
3 pages (1000 words) , Download 2 , Essay
The American Heart Association has identified increasing age, male sex (gender) and heredity as the three major risk factors with regard to coronary heart disease. Tobacco smoke, high blood cholesterol, high blood pressure, physical inactivity, obesity and overweight and diabetes mellitus are the other major risk factors.
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Fundamentals of molecular beam epitaxy Biology Essay
9 pages (2250 words) , Download 2 , Essay
Free
This paper provides basic description of Molecular Beam Epitaxy (MBE) process. Different theoretical concepts of this process and essential ingredients of a MBE system are also briefly discussed.
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Notions of genetic discrimination,genetic determinism,and a utilitarian comparison Biology Term Paper
6 pages (1500 words) , Download 3 , Term Paper
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For instance, a study may be published associating on average a specific gene with a certain quantifiable behavior. The media, upon receiving word of this research, will change the wording of the story in order to sensationalize and sell the story as newsworthy, often relying on words like “cause”.
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The essential features of prokaryotic replication or Transcription in prokaryotes and eukaryotes Biology Essay
3 pages (750 words) , Download 3 , Essay
Much research has been done on analyzing the genetic process in the prokaryotic cells and this paper will focus upon the prokaryotic cells with regard to the important features of replication in these cells. The prokaryotic cells are small in diameter and their size ranges from 1 till an average of 5 micrometer.
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Cell Membrane and Cytoplasm Biology Essay
6 pages (1751 words) , Download 2 , Essay
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Cells can be structurally divided into two groups i.e. the prokaryotes and the eukaryotes. The basic difference between these two groups is that eukaryotes contain a nuclear membrane that surrounds the nucleus and the materials embedded in it whereas in prokaryotic cells the genetic material inside the nucleus is not surrounded by a membrane.
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How Homeostasis affects the Interaction of Physiological Processes Biology Essay
12 pages (3000 words) , Download 4 , Essay
The details of key terms will be discussed first, subsequently leading towards the description of relationship between homeostasis and nervous system. In addition to this details from practical work which is related to the subject are also included. Introduction Homeostasis is a relatively complex term which is used to describe the activity of neurons and other cells which are particularly excitable.
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Candidate Cancer Meiosis Genes Biology Literature review
24 pages (6000 words) , Download 3 , Literature review
Research has shown that some of these genes that are only expressed in the testes are also expressed in other somatic cells when they become cancerous tumor cells. The cells in the testes often escape the cells of immune system, because of which they are protected from antibodies that are directed towards cancer-testis antigens.
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The History of Maize from the New World to Africa Biology Essay
14 pages (3500 words) , Download 2 , Essay
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The author explains that beginning from the 1500’s, Portuguese settlers brought the cereal, along with some other New World crops in order to increase the food supply in Africa. At present efforts are being made in order to increase Africa’s annual local production and at the same time reduce their importation rates.
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Organisation Value Strategies and How These Are Supported by Modern Technology Biology Dissertation
17 pages (4796 words) , Download 2 , Dissertation
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The success of an organization is highly dependent on the values and strategies used to attain those values. For an organization to be competitive, it must have a well-established business strategy that will be pivotal in helping it achieve its values. Values are the ones that guide the activities of organizations.
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Human Genome Project Using PCR Biology Dissertation
20 pages (5000 words) , Download 3 , Dissertation
Free
Comparisons of structures of annexin A5 orthologues derived form human, mouse, chick and rat have aided in the determination of conserved regulatory motifs as well as coding regions. Conversely, the functional active chains are yet to be characterized.
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Genetically Modified Organisms Biology Research Paper
9 pages (2250 words) , Download 3 , Research Paper
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Moreover, this paper explores numerous aspects of genetically modified organisms in order to achieve the research objectives. In this case, this research paper will cover aspects such as historical background, political, legal and economical impact of the GMO.
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Addison's Disease and Adrenal Insufficiency Biology Essay
15 pages (4441 words) , Download 3 , Essay
Free
Addison’s disease may occur in isolation or in combination with other autoimmune diseases. Autoimmunity remains the chief cause of Addison’s disease in Europe and in Africa, although the incidence rates in Africa are low. The key immunological finding is the presence of autoantibodies against cytochrome P450 21-hydroxylase, an enzyme in the biosynthesis of adrenal steroid hormones.
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Brand Management Biology Dissertation
12 pages (3000 words) , Download 3 , Dissertation
Proposed Project Rationale 9 3. Research Design 11 3.1 Justification of Methodology 11 3.2 Method of data collection 12 3.3 Method of Analysis 13 4. Project plan 13 4.1 Ethical consideration 14 REFERENCES 14 APPENDIX 17 1. Literature Review Throughout the history there has been a marked difference in the change of the perception of the stakeholder regarding the role of branding for an organization.
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Business Strategy in a Global Environment Biology Essay
10 pages (2500 words) , Download 2 , Essay
Structure 9 4.2. Cultural Factors 11 4.2.1. Local Culture Analysis 13 4.2.2. Organisational Cultural Analysis 14 4.3. Leadership and Strategic Change 15 5. CONCLUSION 16 List of References 17 Appendix 19 1. STRATEGIC CHOICE Based on the SWOT analysis, strategic choices available to TNT Express have been developed.
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Molecular Targets and Drug Design: Apoptosis Biology Essay
10 pages (2500 words) , Download 2 , Essay
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Apoptosis Student Name Instructor Name Course University 21st December 2012 Apoptosis Apoptosis also defined as programmed cell death or physiological cell death that occurs as a result of a deliberate activation of the constituent genes, whose main function is to cause its own death.
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Single Nucleotide Polymorphism in Prion Protein Alleles Biology Essay
12 pages (3476 words) , Download 2 , Essay
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The essay analyzes species genotype as to their genetic makeup for alleles. Single nucleotide polymorphism in the genotype of the three codons renders sheep susceptible or resistant to the scrapie is one of the types of diseases known as Transmissible spongiform encephalopathies. DNA extraction and amplification will be done through PCR amplification.
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Entry Strategies of the foreign firms in the Indian Android Smart Phone Market Biology Dissertation
10 pages (2500 words) , Download 3 , Dissertation
This study integrates the relevant strategies applied by new entrants in the Indian mobile markets. This study establishes that, smaller firms are more flourishing than larger firms, and superior openness of the budding market have lower success (Leedy & Ormrod, 2010). Furthermore, other findings indicate that, the achievement is higher with superior control of entry mode, earlier entry and shorter cultural and monetary distance amid the home and the host nations.
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Recession & tourism industry in London during 2007-2010 Biology Dissertation
12 pages (3000 words) , Download 3 , Dissertation
The 2007-2010 global financial recession was a culmination that emanated from inchoate financial policies that were being used to regulate banking, housing and monetary policies but ended up affecting the rest of the economy in the developed world. Eventually, the consequences of these policies would trickle down to the developing economies and the rest of the world.
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The Molecular Detection Methods For Plasmodium Falciparum Biology Essay
10 pages (2500 words) , Download 2 , Essay
There are also other plasmodium species which cause malaria. These are plasmodium ovale, plasmodium malariae and plasmodium vivax which are considered as less dangerous species. Malaria is spread by the female anopheles mosquito which while feeding on human blood injects its saliva into the body.
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