Free Biology Essay Examples and Topics | Page 67

What factors affect heart rate Biology Lab Report

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Since, during inspiration it slows down prior resuming to the normal beating. The fluctuations differ drastically depending on the breathing alterations per minute, which is the key exemplification of this report. Heart rate of an individual or any animal is directly comparative to the breathing.

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Progressive Supranuclear Palsy Biology Research Paper

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An unknown etiology is reported to be associated with the condition. It is an akinetic-rigid form or parkinsonism, the condition is exemplified due to early falls and abnormalities of extraocular movements. The onset of the condition is around 63 years of age and the individual is known to survive for the period of 9 years after the onset of this rare condition.

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The Opium Poppy: Blessing and Curse Biology Research Proposal

3 pages (750 words) , Download 3 , Research Proposal

Preparation of opium requires the dried latex of green seedpods of the opium poppy as the raw material (Szablewicz, 2010). Opium poppy has a complex history as it has brought great problems, as well as great benefits to the human society (Lee et al., 2011).

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Fantastic Voyage Biology Term Paper

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Fantastic Voyage Name HS 130 Section # Unit 4 Assignment Kaplan University Date Purpose The purpose of this essay is to trace the path of blood flow from the right femoral vein into the lower right lobe of the lung through the right pulmonary artery. Once we reach the lung we will describe cells found within that contribute to our immunity, describing innate and specific immunity.

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Theory of Evolution and Evidence for Natural Selection Biology Assignment

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The author states that natural selection is a key mechanism of evolution, the change in heritable traits of a population over time. It is the differential survival and reproduction of individuals. He thinks that the idea behind natural selection is that certain features provide organisms with advantages that lead to easier survival.

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Computer Simulation of Action Potentials in Squid Axon Biology Assignment

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ABSTRACT Analyzing action potentials is important in understanding the mechanisms of signal transmission in nerves. To do this, an experiment using a computer program to study the generation of action potentials using electrical stimuli was conducted. By modifying the strength and duration of stimuli, the changes in the action potential’s latency and strength were observed.

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Organism Physiology Biology Essay

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Organism Physiology Name of the Organism The name of the organism, which I am going to discuss in this paper, is ‘Frog’. Frog is an amphibian, which has its presence on the earth for millions of years. In this paper, we will talk about its main organs and will discuss how it has evolved physiologically to suit its external environment.

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Sickle Cell Anemia Biology Essay

6 pages (1500 words) , Download 3 , Essay

The term sickle cell comes from the sickle shape or the crescent type shape of the affected hemoglobin molecules. It is caused due to a change in just a single nucleotide in a DNA molecule out of a billion others present in the cells of the human body. It may seem like a minor change but the effect is disastrous.

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The Cancer Cell Biology Essay

3 pages (750 words) , Download 2 , Essay

The researchers have successfully managed to come up with various conclusions especially concerning the genes that are attacked to induce the condition. The genes that are actively involved in cancer progress bring a clear understanding in a biological context.

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Meiosis; Asexual and Sexual Reproduction; History of Genetics; Biology Assignment

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Meiosis also known as reduction division is a type of cell division where the cells divide to produce cells containing half the number of chromosomes. This type of cell division constitutes a very important part of sexual reproduction and all eukaryotes reproducing sexually have meiosis as a part of cell division. However, the prokaryotes i.e. the bacteria do not reproduce by meiosis.

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Is Global Warming due to Human Actions Biology Research Paper

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Global warming was not a part of the earth and its system; it is a cause of the carelessness of the people of the earth. Any problem caused by human beings has a definite solution and the solution is with the human beings themselves. Global warming is also a cause of the human activities and humans need to realize it to remove it forever (ThinkQuest, n.d.).

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The Cell Theory: Cell Division, Organelles, and Chromosomes Biology Assignment

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The Cell Theory encompasses 3vbasic theories. Firstly, "all living things are made of cells". Secondly, a single cell is the smallest unit of life as it is the smallest living thing that performs all life functions. Finally, all cells originate from pre-existing cells. The process of formation of new cells from older cells is called cell division

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Disorders Involving the Sex Chromosomes Biology Term Paper

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Sex chromosomes are those that determine the gender of individuals to be either male or female. The sex chromosomes face several disorders that arise from the deletion or addition of the sex chromosomes; X and Y. chromosomes are made up of long strands of the genetic material deoxyribonucleic acid, DNA that contains several genes that are responsible for the various traits in human beings (Gardner, Sutherland and Shaffer 123).

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Infectious Diseases and Antibiotics Biology Essay

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Antibiotics are normally used in the treatment of infectious diseases. This paper analyses the classification, transmission, prevention, diagnosis and therapy of infectious diseases, the history, types and effectiveness of vaccines and the functioning of vaccines in human body.

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Do Animals Feel Biology Research Paper

6 pages (1500 words) , Download 2 , Research Paper

The Army had a saying before “you can talk to a horse, but you can also chat and whisper to a mule and to other animals” (Buttons, n.p.). In line with this, there are several theories explaining that man become associated with animals because animals think, feel joy and sadness, feel bored, desire, and even sexual feelings.

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Development of the Human Placenta Biology Research Paper

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As the discussion stresses placenta has two components a fetal part that develops from the chorionic sac (chorionic villi) and a maternal part that develops from the endometrium. Development of placenta begins after the cleavage of zygote, which consists of repeated mitotic divisions and the ultimate formation of a blastocyst.

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Nephrotoxic and Hepatotoxic Species of Mushrooms Biology Essay

3 pages (750 words) , Download 2 , Essay

Mushrooms are one of the most delightful food items in the world. It is liked and used by many people while preparing different recipes. Mushrooms are fungi and not plants. For their nutritional needs, mushrooms rely on the decay of dead plants as they lack chlorophyll. Shady forests or damp grassy fields are the common breeding grounds for mushrooms.

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Cancer and biopsies Biology Essay

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Cancer and biopsies Name of the student: Course code: Tutor: Date of submission: Cancer and biopsies Introduction Based on Science Daily Newspaper that covers scientific themes and issues, my preffered topic from this newspaper is cancer and biopsies. With reference to the article dated 8th December 2011, the article caught the interest of majority of its readers since it helps in passing the information, and creating awareness on one of the most common killer disease on the planet called cancer.

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The Meaning of Genotype and Phenotype and the Effect of the Environment on the Phenotype of an Organism Biology Coursework

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The difference in coding has little difference when hemoglobin molecules are attached with oxygen. However, when hemoglobin is not combined with oxygen, deoxygenated blood, the mutated beta chains make hemoglobin less soluble. The hemoglobin molecules form long fibers inside the red blood cells.

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Central Jersey Blood Center, HIV and AIDS Biology Essay

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The present study focuses on five topics related to biology that are Central Jersey Blood Center, HIV and AIDS, St. Francis Counseling Center on Abusive Relationships, Family Planning Services and Features, and Planned Parenthood Services and Features. Each of these topics is discussed in the report as follows.

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Human Papillomavirus (HPV) in Breast Tumors Biology Coursework

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HPV’s association with other cancers such as oral, esophageal nasopharyngeal and larngyeal, and with some researches claiming evidences of its HPV etiology, the possibility of using HPV vaccines against breast cancer looked promising. However, as studies on the matter are further being conducted, they begin to arrive at conflicting conclusions.

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Stem Cell Research Biology Research Paper

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So, as the science of stem cells rapidly generates new discoveries, it also encourages a serious debate among scientists, human rights activists, as well as ordinary people about the validity of approving the experiments on stem cells for addressing many scientific issues.

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Assessment of Lipase Activity in Pancreatic Extracts Biology Essay

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The fat globules do not mix with the stomach fluids. The fat globules are not digested in the stomach and they move into the small intestine. The floating immiscible fat molecules are digested with the help of the emulsifier bile. Bile is an amphiphilic molecule.

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Tracing Genetic Ancestry in Humans Biology Research Paper

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Current scientific advancements (further discussed below) allows an individual to determine whether they came from the lineage of Bible figures Moses and Aaron, or of Genghis Khan, US President Jefferson, and other historical figures (www.rootsforreal.com).

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Hematology Biology Coursework

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Hematology Laboratory Questions Q1. Labelled diagrams and description of function of each cell type: - Neutrophil: Neutrophils are granulocytes –white blood cells - produced by the bone marrow. There are about 1.3 x 1011 neutrophils per 80-kg person per day produced by hematopoietic system.

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DNA Repair Mechanisms Biology Research Paper

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Since different strains of the bacteria react differently to gene replacement with lacS gene, these researchers hypothesize that different S. solfataricus strains have different DNA processes as well, including their repair mechanisms. First, each strain was cultured using 0.2 to 0.4 in basal salts medium with 0.1% (wt/vol) sucrose and 0.1% (wt/vol) tryptone (ST medium) or 0.2% (wt/vol) glucose and 0.2% (wt/vol) tryptone (GT medium) prior to UV exposure.

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The Scientific Method Biology Essay

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The author was able to identify plant hormones such as auxin that mediate the response of the direction of plant growth to sunlight. He hypothesized that, if plants are exposed to the sun, and other plants are kept from the sun, then the differences in the growth patterns of the plant and the levels of auxin should be related.

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Effect of sound on oyster Biology Essay

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The personnel involved include the PI, a Post-doctoral research Associate attached at the center on service basis and two undergraduate students contracted on full time basis. Project Budget Budget item Year 1 Year 2 Year 3 Total PI Salary $17,000 $17,000 $17,000 $51,000 Graduate Research Assistant $0 $0 $0 $0 Post-doc Research Associate $1,216 $1,282 $1,348 $3,846 Undergraduate Students (2) $21,000 $21,000 $21,000 $63,000 Total Salaries $39,216 $39,282 $39,348 $117,846 Fringe Benefits $6,282 $6,282 $6,282 $18,846 Supplies & Services $10,000 $5,000 $5,000 $20,000 Travel $2,000 $1,500 $3,500 $7,000 Permanent Equipment $0 $0 $0 $0 Subtotal Direct Costs $57,498 $52,064 $54,130 $163,692 Other co

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Ion Channel Disease Channelopathy: Myotonia Congenita Biology Term Paper

5 pages (1250 words) , Download 2 , Term Paper

Channels exist in three different sates: open, closed or inactive. They are composed of different subunits and each subunit is coded for by specific genes (Bernard & Shevell 2008). An ion channel can be either of the voltage gated class or the ligand gated class.

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Analysis of Aging Process Biology Research Paper

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Generally speaking, scientists use to think that brain cells died and as a result, our mental abilities waned. We all now know that the cells stay put, but the connections between them fade. This knowledge affects our daily lives because we do know how to keep connection healthy and long-lasting.

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Impact of Menopause on Women Sexual Function Biology Research Paper

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The menopausal stage continues until the death of the woman or rather the woman does not go back to the earlier stage thus it is permanent. The idea of stopping the menstruation means the woman’s body is undergoing hormonal changes that affect her sexuality.

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The Controversial Stem Cell Issue Biology Personal Statement

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Another thing that is distinct to stem cells is that it can give rise to specialized cells that make up new tissues and organs of the body. Most knowledge on stem cells came from animal research however, a lot of professionals have started applying the study in human embryos that is the main issue in the much disputed “stem cell” research (NIH Stem Cell Information Home Page, n.d).

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E. Coli Bacteria Engineered to Eat Switchgrass and Make Transportation Fuels Biology Research Paper

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These are normally components of many common medicinal yields, detergents and chemicals used to kill herbs. With continuous research, it has now become possible as Fern R. McSorley a Chemistry graduate student of the Queens University in collaboration with Bjarne Jochimsen, a molecular Biology student in at Aarhus University and Bjarne Hove-Jensen, a student at the Biology Department, University of Copenhagen were able to prove that bacteria E.coli could actually breakdown compound in grass and yield bio-fuel which can be used to solve the now eminent the energy crisis (Chen, 2011).

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Artifactual and Paleoethnobotanical Data Biology Essay

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Merlin (2003) defines archeology as the scientific study of human society, by recovering and analyzing the environmental data and material culture that they left behind, including architecture, artifacts, and cultural landscapes. Archeology is both humanity and a science because it uses a wide range of procedures (Merlin, 2003)

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Crime And Behavioral Genetics Biology Research Paper

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Some researchers attribute this diversity to the genetic makeup of an individual asserting that the genetic propensities have a role in the engagement of crime among individuals. It is avowed that the genetic composition of an individual may be interactive or additive to the individual’s engagement on criminal behavior.

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Food Borne Diseases Biology Lab Report

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The author explains that raw ham is infested by microorganisms which include gram-negative bacteria, lactic acid bacteria, and yeasts. After the ham was pasteurized, the number of the bacteria reduced. High-care treatment causes preference towards the lactic acid bacteria and enterobacteriaceae.

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OCA2 Gene - Hair Color Biology Essay

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The hair color is in turn determined by melanocytes amount in follicles and their nature. Hair color differences can be brought about either by the quantity of melanin in the hair or diverse synthesis of either brown melanin or red/yellow melanin. The OCA2 gene is also known as Oculocutaneous albinism II or the P gene is responsible for the manufacture of a protein known as the P protein contained in the melanocytes.

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Achondroplasia Dwarfism Biology Research Paper

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Achondroplasia Dwarfism Human body is made up of cells containing a substance that codes for protein type known as deoxyribonucleic acid (DNA), these DNA when wrapped together are known as chromosomes. There are 23 pairs of chromosomes in a cell that are passed on through male sperm and female egg.

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The Causes of Hemophilia A and Its Prevalence Biology Essay

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Hemophilia A is a disease that is predominantly prevalent in the male population with the females acting as carriers. It occurs due to abnormality in the blood clotting process, thereby causing abnormal bleeding. Carrying out various tests to establish the presence of the disease is very essential. This is because bleeding may occur due to other conditions other than Hemophilia A.

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Arguing the benefits of contributing DNA Biology Essay

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It exists as a double strand in the cells of the body. Due to advances in cell biology, DNA profiling is a possibility. The procedure depends highly on the ability to amplify DNA through polymerase chain reaction (PCR). Polymerase chain reaction is a procedure of amplifying the small samples of DNA into larger samples for manipulation.

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Embryonic stem cells Biology Research Paper

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It should be noted that fertilization stimulates the process of cell formation and embryonic cells formed immediately after fertilization has huge value and utility than any other cells formed after few months or years. Embryonic stem cells has the ability to replicate indefinitely and it can give rise to any fetal or adult cell type.

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Marine Dolphins Biology Research Paper

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Dolphins have their habitats in oceans, seas and major rivers. They have become specialized to their different ecological niche that they occupy. Dolphins are exclusively carnivorous. Some feed exclusively on fish or cephalopods. Cephalopod is a class of marine that includes cuttlefish and octopus.

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Manta rays Biology Research Paper

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Although all manta rays are massive, there are several different species that occur around the world, and each one varies slightly in size. Despite its giant appearance, it prefers inshore waters, and only seldom journeys into the depths of the open ocean.

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Stem Cell Research Biology Research Paper

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Since the announcements, the quickening pace of discovery relating to the basic biology of human stem cells has been substantial. Generally, this is a result of the promise of the application of these special cells to various therapeutic uses, including the treatment of a variety of diseases that involve tissue and organ degeneration (Nisbet 1).

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Biology Term Paper: Mononucleosis Biology Term Paper

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Consequent studies have established that EBV is the contributory agent in large cases of infectious mononucleosis. Studies reveal that infectious mononucleosis (IM) is also caused by the cytomegalovirus (CMV). This virus belongs to the group of herpesvirus called as Herpesviridae.

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Microbiology Lab Report: Bacteria Biology Lab Report

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Bacteria were discovered by Anton Von Leeuwenhoek in 1676, which he called animalcules. Louis Pasteur in 1859 discovered that fermentation is an effect of microbial activity. Robert Koch postulated the ‘Germ Theory’ and went on to win the Nobel Prize in 1905.

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Genetically Modified Food Biology Essay

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People in a comfortable position must contribute extensively to eradicate Poverty only then will the world become a better place to live in. There is a severe shortage of food in African countries, people die in the Dark Continent because of this shortage of food, genetically modified food is really useful and it can save many a life in Africa and all across the globe where poverty and hunger exist.

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Important Sex Linked Disorder That Affects Humans Biology Assignment

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The genotype of the striped fur normal eyes tiger could be one of the four listed above, while the genotype of the white fur crossed eyes tiger must be ffnn. If some of the offspring have striped fur and crossed eyes, then the striped fur normal eyed tiger must have carried the n allele, and thus his genotype was either FFNn or FfNn.

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Marine Wildlife Biology Assignment

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It assists in estimation of energy, mineral transfer as well as prey-predator relationships within an ecosystem. Previous researches have proven that otoliths as well as cephalopod beaks can be made use on estimation of the lengths as well as the mass of fish.

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Extrachromosomal DNA Molecules Biology Essay

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Plasmids are extrachromosomal DNA molecules and are mostly double–stranded, circular, and covalently closed molecules, varying in size from 1 kb to 200 kb. (Sambrook and Russell 2001). They are found in many bacterial species. They replicate independently and use a variety of mechanisms to maintain their copy number.

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