Natural Sciences Essay Examples and Topics. Page 9

2,730 samples

Editing the Genome of Human Embryos: Pros and Cons

This study has not yet been finalized to the extent that scientists can allow it to operate in the conditions of real people. In this regard, scientists should continue to work on the development of [...]
  • Subjects: Genetics
  • Pages: 1
  • Words: 404

Sulfur Mustard: Hazards, Properties, and Warfare Usage

As it is a lipophilic compound, the skin, the eyes, and the respiratory tract easily absorb the chemical. Sulfur mustard is also hypothesized to affect one's fertility and serve as a carcinogen, although the former [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 667

Microbiology: Aspects of E Coli

E Coli is a common type of bacteria that is found in the intestines of human beings and the gut of several animals.
  • Subjects: Biology
  • Pages: 2
  • Words: 676

Producing Efficient Ethanol From Waste

The first prediction was the significant materials of the waste that can be changed to ethanol were lignocellulose and starchy compounds.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 865

The Article “Is This the End?” by James Atlas

As Atlas contemplates the existing monuments of the 20th-21st centuries, he writes about the great nations of the past, such as the Roman Empire, that never thought it would collapse in the way it did.
  • Subjects: Archeology
  • Pages: 2
  • Words: 578

The Cancer Cell Development: Causes and Sources

Loss of function of suppressor genes resulting from mutations becomes the cause of cancer development: the cell divides abnormally, increasing the cell mass of the tissue.
  • Subjects: Biology
  • Pages: 1
  • Words: 474

The Role of Microorganisms, Biotechnology

Today, the field of their use in human life is so vast and diverse that it makes an invaluable contribution to the development of such industries as health, industry, and the functioning of the environment.
  • Subjects: Biology
  • Pages: 1
  • Words: 391

Ancient Chinese Contributions

These four areas of innovations contributed greatly to the growth and massive transformation of China up to the current time. The use of Fireworks/gunpowder has changed the face of the world in regard to warfare.
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 836

Biological Taxonomy: Classification of Microorganisms

This discovery invalidated the eukaryote-prokaryote dichotomy by revealing the concise division of the 16S rRNA tree into three primary branches, which was later distinguished as the three life domains: Eukarya, Archaea, and Bacteria.
  • Subjects: Biology
  • Pages: 2
  • Words: 681

Blood Cells and Their Functions

The function of red blood cells lies in carrying oxygen from the lung to the rest of the body. Such a shape allows them to increase the area of the surface, which, in turn, creates [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 567

Most Powerful Tidal Turbine Set Sail in Scotland

The location of the UK makes it a perfect choice for the widespread implementation of tidal power. Overall, tidal energy has a chance of becoming a noticeable energy source in the UK.
  • Subjects: Geography
  • Pages: 2
  • Words: 374

Homeostasis and Regulation in the Human Body

The feedback loop essential components include the receptor, also known as a sensor, which detects changes in the body Remember that homeostasis is the ability of the body to maintain stable and balanced internal conditions.
  • Subjects: Biology
  • Pages: 3
  • Words: 827

Continuous Cell Lines and Primary Cell Cultures

One feature which is common for both types of cell models is the tissue of origin both of them stem from, which means that to some degree, they share the same genetic makeup.
  • Subjects: Biology
  • Pages: 1
  • Words: 344

Color Blindness and Its Genetic Nature

Nevertheless, color blindness genes may be carried by the non-color-blind female and transferred to future generations. Depending on the mutation, inherited color blindness may be congenital or may reveal itself in childhood or adulthood.
  • Subjects: Genetics
  • Pages: 1
  • Words: 294

Ubiquity of Bacteria: Laboratory Activity

You will examine some surfaces and note that while you cannot see individual bacteria because they are so tiny and clear, it is possible to see a colony, or group, of bacteria. Then, the bacteria [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1496

Biohybrid Actuators: Compare and Contrast

The introduction also encompasses the description of the researchers' procedure, addressing the aim of examination and stimulation of the electrical signals in plants.
  • Subjects: Biology
  • Pages: 3
  • Words: 846

The Role of the Dietary Lipids in the Organism

This is achieved when one-third of vegetable and two-thirds of animal fats are used in the diet. The sources of dietary lipid in food are fats used in food preparation and those contained in food.
  • Subjects: Biology
  • Pages: 2
  • Words: 645

Jean-Baptiste Lamarck’s Views and Works

For example, a giraffe's neck is stretched because it needs to reach the foliage on the tops of trees, and the anteater's tongue has become long to penetrate the anthill.
  • Subjects: Biology
  • Pages: 1
  • Words: 311

Human Biology: Human Cells and Chromosomes

Both pathologies are united by the common term aneuploidy, which describes deviations in the karyotype of a diploid organism in which the number of chromosomes is not a multiple of the haploid set.
  • Subjects: Biology
  • Pages: 1
  • Words: 380

Japanese Agricultural Policies

To cope with the hardships of food supply, Japan needs a flexible and robust regulation in the food and agricultural fields.
  • Subjects: Agriculture
  • Pages: 4
  • Words: 787

Pathogen Study: Pseudomonas Aeruginosa

The pathogenicity of the bacterium is expressed in the infection of sites with purulent inflammatory processes and abscesses, which is particularly relevant to burn victims.
  • Subjects: Biology
  • Pages: 3
  • Words: 860

Information About the USA States’ Boundaries

The dependent variable was the ability to identify and mark the member states on the provided blank map. On average, the participants correctly identified 23 states on the map, with three people labeling all 50 [...]
  • Subjects: Geography
  • Pages: 3
  • Words: 685

Peace River Fossils. Fossil Musk Turtles

Such data was used to determine the age of the remains and assume a possible period of species existence. Researchers have found that some of these fossils may date back to the late Miocene.
  • Subjects: Archeology
  • Pages: 2
  • Words: 501

Arid Australian Soils: A Solution to the Problem

Solving all of the above issues and problems imposes a serious responsibility on the agro-industrial complex, which means that agricultural enterprises must use the available resources to find a solution to the problem of drought.
  • Subjects: Agriculture
  • Pages: 13
  • Words: 3626

Genetic and Genomic Technology

Positive results mean that a patient has been diagnosed with the disease, and so treatment is essential to ensure the patient's good health.
  • Subjects: Genetics
  • Pages: 3
  • Words: 949

Kenya, East Africa: History and Geography

Kenya is an East-African country bordered on the northern sides by Ethiopia and South Sudan, Lake Victoria and Uganda to the west, Tanzania to the south, and the Indian Ocean and Somalia to the east.
  • Subjects: Countries Studies
  • Pages: 7
  • Words: 711

Study of the Concept of Thermoregulation

The body's response to such signals often results in sweating, one of the most visible manifestations of the thermoregulation in the human body.
  • Subjects: Biology
  • Pages: 4
  • Words: 373

Long Island Excavation Site Report

Thus, in this particular report, the interpretation of the findings discovered during the excavation is strictly subjective, based partially on the existing knowledge of similar sites and the regional specificities.
  • Subjects: Archeology
  • Pages: 6
  • Words: 1726

Neanderthals: Debates Regarding the History of Neanderthals

Future studies showed that, in the beginning, Homo sapiens and Neanderthals had the same group of ancestors in Africa. The rest of the group stayed in Africa and created the beginning of the modern human.
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 811

Nervous System and Human Capacities

The central part of the system is located in the brain and spinal cord, and all reactions appear there, while the peripheral one operates all over the body to deliver the signals to the organs.
  • Subjects: Biology
  • Pages: 1
  • Words: 418

Anthropologist James Deetz and the Tobacco Trade

He noticed that there was a variation in the size of the bore stems and thought to himself that maybe there is a correlation between the bore stem size to the year it was created [...]
  • Subjects: Anthropology
  • Pages: 2
  • Words: 549

Stromal Cells in Formation of Extracellular Matrix

Since the extracellular matrix is primarily formed from connective tissue cells, it is pertinent to note that stromal cells are fundamental to the construction of the 3D matrix.
  • Subjects: Biology
  • Pages: 1
  • Words: 307

Qin Shi Huang: The Big Dig

The story of the Tomb of Qin Shi Huang begins in 1974 when farmers from Xi'an dug into one of the fascinating excavations of the 20th century.
  • Subjects: Archeology
  • Pages: 4
  • Words: 1116

Agriculture and Its Social Origins

Despite the advantages of old methods of finding food and the disadvantages of agriculture, the transition could occur due to the human factor.
  • Subjects: Agriculture
  • Pages: 3
  • Words: 760

Understanding the Hand Anatomy

The excellent functionality of the different parts of the body, including the hand, thigh, neck, girdle, pectoral, and legs, are critical for the normal functioning of a human being.
  • Subjects: Biology
  • Pages: 4
  • Words: 1226

SCN8A-Related Epilepsy – Genetic Seizure Disorder

The paper contains the discussion of the standardized procedure for this diagnosis, suggests how the present experience would affect the medical practice concerning this kind of epilepsy.
  • Subjects: Genetics
  • Pages: 7
  • Words: 1930

The Integumentary and the Skeleton System

It is in the position of balance that the body is able to function successfully and in a normal state. It is the role of these hormones to control the body's operations.
  • Subjects: Biology
  • Pages: 4
  • Words: 1100

Reproductive Performance of Transgenic Atlantic Salmon

The article's findings showed that in terms of spawn participation, quivering frequency, and nest fidelity, captively reared transgenic counterparts were outperformed by wild anadromous males.
  • Subjects: Zoology
  • Pages: 1
  • Words: 366

Molecular Genetics: Gene Sequence Homology

The emergence of the Mendelian genetics in the 19th century and the discovery of DNA structure by James Watson and Francis Crick in the 20th century have paved the way for the development of molecular [...]
  • Subjects: Genetics
  • Pages: 5
  • Words: 1435

Indigenization of Australian Libraries

Australian libraries have, in some ways, contributed to the misrepresentation and underserving of the Indigenous community, which has overarchingly perpetuated levels of distrust towards information systems.
  • Subjects: Anthropology
  • Pages: 9
  • Words: 12901

The History of European Alchemy

The birth of this concept was found through the merger of the philosophies of Aristotle with Christian theology and for centuries predominantly found in Europe of the middle Ages and Renaissance.
  • Subjects: Chemistry
  • Pages: 20
  • Words: 5823

Chemical Composition of Cells: A Lab Experiment

This laboratory experiment focuses on the chemical composition of cells, appropriate identification of which contributes to the understanding of distinctions between organic and inorganic chemicals.
  • Subjects: Chemistry
  • Pages: 1
  • Words: 284

Native Dune Systems vs. Man-Made Beach Structures

Economic analyses and resumes provided in this paper state that the safety and protection of shorelines are paramount to Florida tourism, and that the destruction of these shores are going to hurt the economy of [...]
  • Subjects: Geography
  • Pages: 20
  • Words: 5002

Cockroach Infestation: Essential Findings and Solutions

The idea that the threat of having a cockroach infestation is in direct proportion to the elevation of the room remains a common misconception. The issue of cockroach infestation is not to be underrated.
  • Subjects: Zoology
  • Pages: 2
  • Words: 624

Stoichiometry and Process Calculations

The method used to determine the unknown compound is called Gravimetric analysis. According to Helmenstine, the gravimetric method is used to measure the compound's mass.
  • Subjects: Chemistry
  • Pages: 1
  • Words: 344

Anthropology. Racial Quota System in Education

The introduction of the Racial Quota System in education as a form of Affirmative Action not only provides black and poor students with the opportunity to get specialization in the Brazilian universities but also challenges [...]
  • Subjects: Anthropology
  • Pages: 2
  • Words: 614

DNA Cloning and Sequencing: The Experiment

The plasmid vector pTTQ18 and the GFP PCR product will be digested with restriction enzymes and the desired DNA fragments obtained thereof will be purified by Polyacrylamide gel electrophoresis and ligated with DNA ligase resulting [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 573

Aspects of Evolution and Creationism

The adheres to the theory of divine spark and pays special attention to the ability of organisms to adapt to various conditions and the complexity of their structure.
  • Subjects: Evolution of Humans
  • Pages: 5
  • Words: 1247

Strengths and Weaknesses of an Artificial Kidney

First, artificial kidneys are claimed to prolong the lifespan of patients with kidney problems. Artificial kidneys are hoped to improve the convenience, and effectiveness of dialysis.
  • Subjects: Biology
  • Pages: 6
  • Words: 902

Researching the Physiology of the Eye

It then progresses to the pupil, where the size of the pupil varies depending on the intensity of the incoming light, a phenomenon referred to the as pupillary light response.
  • Subjects: Biology
  • Pages: 4
  • Words: 1122

Lymphatic System Analysis

Due to the anatomy of the lymphatic system, it is sometimes thought to be part of the main circulatory system in the body.
  • Subjects: Biology
  • Pages: 2
  • Words: 568

Production of Human Protein

In the production of human insulin, scientists use recombinant DNA technology to insert insulin DNA into bacteria, which under optimum environments multiply into numerous replicas containing insulin. This is done in order to facilitate replication [...]
  • Subjects: Genetics
  • Pages: 5
  • Words: 1389

PH Titrations & Buffer Solutions Experiment

The objective of this experiment was partly to determine the behaviour of PH curve of a triprotic acid and hence determine its pKa value, and on the other part to determine the concentration of an [...]
  • Subjects: Chemistry
  • Pages: 7
  • Words: 986

Competition in Nature Observation

For example, it can be between plants and plants or animals and other animals or animals and plants, whereby the survival of one is threatened or lowered by the existence of another especially when there [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1276

Anatomy of the Brain: Key Issues

Some of the basic parts of the brain include the cerebral cortex lobes namely; the temporal lobes, the frontal lobes, the occipital lobes, the parietal lobes, the prefrontal cortex, and the limbic system.
  • Subjects: Biology
  • Pages: 5
  • Words: 1375

Hybrid Cows That Produce Human Milk for Infants

The nutritional content of genetically modified milk from cows is brought close to that of human breast milk. Genetically modified cow's milk has been made to bring the nutritional content closer to that of human [...]
  • Subjects: Genetics
  • Pages: 5
  • Words: 1469

Enzyme Determination of Glucose

The glucose amount was then obtained from the values of the standard glucose concentration using Beer-Lambert's law. The results of the sample glucose with unknown concentrations were recorded in the second table.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 565

Aspects of the Skeletal System

The bones have a covering of calcium compound cells at the surface that gives the bones the strength and structure that they require for protecting and supporting the body.
  • Subjects: Biology
  • Pages: 2
  • Words: 578

New Gene Discovered That Stops Spread of Cancer

At this point, it is crucial to mention that the discovery by the Salk institute is just a beginning of a long scientific journey that is anticipated to culminate in a comprehensive and conclusive study [...]
  • Subjects: Genetics
  • Pages: 3
  • Words: 795

DNA Microarray Technology and Applications

These DNA microarrays are used by scientists in order to determine the appearance levels of a big number of genes, and also to the manifold region of a genome.
  • Subjects: Genetics
  • Pages: 9
  • Words: 2608

Medical Breakthrough: The Bionic Eye

The development of the bionic eye came as a result of the impacts of retinitis pigmentosa. The camera sends the images to a bionic implant that is attached behind the eye.
  • Subjects: Evolution of Humans
  • Pages: 5
  • Words: 1423

Pasteurization: Processing Food Substances

The second benefit of pasteurization is witnessed in the deactivation of enzymes that are found in various food substances. It is only the process of pasteurization that can lower the activity level of the enzymes.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 567

Preparation of Polymers and Polymer Modification

The hypothesis of the second experiment process was that Elmer's Glue changes into a rubber-like material from a glue-like substance. After the second process of combining Borax solution with Elmer's glue, a rubber-like material was [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 568

Cytogenetic Testing in Pregnant Women

Being predominant, however, the occurrence of digenic triploidy in a fetus could be up to very high percentages; diandry is responsible for about 50.
  • Subjects: Genetics
  • Pages: 8
  • Words: 2436

The Structure and Amino Acid Sequence of Beta-Glucuronidase

Beta-glucuronidase has wide application in the determination of urinary steroids as documented by Bernfeld and Fishman data. The purification protocol of -glucuronidase adopts a method that was described by Bernfeld and Fishman.
  • Subjects: Biology
  • Pages: 4
  • Words: 2032

Discussion on Lab Report an E. Coli Bacteria Lacz Gene

A synthesizing buffer was added to provide the suitable environment required for the synthesis of the new DNA strand. The addition of T4 DNA polymerase was to facilitate the hybridization of the old and the [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 563

Lecythis Pisonis: Wheres Located and What Is It

In the present biodiversity investigation, Vallilo and co-workers have analyzed the fatty acid and mineral composition of L.prisons Camb.seeds from four locations of S o Paulo State and evaluated the nutritive properties.
  • Subjects: Biology
  • Pages: 4
  • Words: 1534

Bioinorganic Chemistry: Metallothioneins

Animal MTs have implications in inherited and occupational diseases that are linked to metabolic disorders in the handling of metal ions.
  • Subjects: Chemistry
  • Pages: 40
  • Words: 9345

Concept of Neurotransmitters

Exercise stimulates the release of neurotransmitters that reduce anxiety and induce a slight sense of joy. Serotonin encourages delight to exercise regularly; after a long break, the stimulation decreases, and restart workouts become challenging.
  • Subjects: Biology
  • Pages: 1
  • Words: 347

Omics Associated With Genes: Role of Nurses Analysis

Genomics is the fundamental basis of the omics sciences group given that the information in the genes and the organism's genotype is considerably accountable for the organism's phenotype.
  • Subjects: Genetics
  • Pages: 2
  • Words: 574

Evolution: Natural Selection in Action

The population of these moths will have both dark and white moths at the starting point. The dark moths reproduced successfully due to lack of predation.
  • Subjects: Biology
  • Pages: 2
  • Words: 552

Bioinformatics of Enzyme Kinase

Cdk5 has an important role in the growth and maturity of the brain, and abnormal Cdk5 activity has been shown to cause the degeneration of neurons in neurodegenerative diseases including Alzheimer's, Parkinson's and Amyotrophic Lateral [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 893

P-chlorophenoxyacetic Acid-preparation of a Synthetic Plant Hormone

The chemical synthesis of 4-chlorophenoxyacetic acid is realized through the reaction of nucleophilic displacement between anions of the 4-chlorophenolate anion and chloroacetate, the product of interaction of which is subjected to acetic acid treatment.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 778

Development of Cities: Factors of Growth

At the same time, the most widespread and constant causes of urbanization are connected with commercial activity and the availability of natural resources.
  • Subjects: Countries Studies
  • Pages: 1
  • Words: 305

Atropian Iron: 1st AD Stability Operations Decision Brief

Solving the problem is essential for securing Atropian independence and sovereignty from existing and potential separatist and insurgent challenges and addressing the root causes of the failure of the Government of the Republic of Atropia.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 795

Puppy Mills. Problems. The alternatives for puppy mills

Generally, evaluating all the sad facts related to dog breading in the facilities under consideration, it becomes evident that puppy mills along with their very concept of profits making present a serious difficulty for the [...]
  • Subjects: Zoology
  • Pages: 4
  • Words: 1164

Importance of the Brain in Human Body

The brain also provides a long-term storage memory where a reader may be in a position to recall the events that have taken place in the comprehension and the right order.
  • Subjects: Biology
  • Pages: 3
  • Words: 946

Migration of the Caribou Birds

With the first signs of a change of season, the herd rushes north as an indispensable condition for survival in the cyclical nature of life.
  • Subjects: Zoology
  • Pages: 1
  • Words: 304

Unique Functional Features of Blindsight

The findings are indicative of the fact that monkeys with striate lesions under standard conditions, where the target stimuli were delivered without the removal of the fixation point, did not move their eyes or saccade [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 648

Portugal: Country Presentation

There are several challenges that should be noted. First, Portugal is challenged by the quality of justice in the country.
  • Subjects: Countries Studies
  • Pages: 6
  • Words: 744

Evolutionary Changes of Animals and Plants

This presentation will show how animals and plants evolved with time passing. It is critical to examine the factors that underlie these processes and their outcomes.
  • Subjects: Biology
  • Pages: 12
  • Words: 869

“The Frog Book” by Steve Jenkins and Robin Rage

In addition, the data is presented simply and interestingly, which attracts attention and makes children less tired of learning. It gives kids the necessary knowledge from the field of zoology in a simple and beautiful [...]
  • Subjects: Zoology
  • Pages: 1
  • Words: 279

Ca2+ Molecule Description and Its Functions

Because IP3 is permeable in the protoplasm, it disperses throughout the cell and attaches to the IP3-receptor on the outside of the ER or SR, causing Ca2+ to be transported from the ER or SR [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 628

Biodiversity and Dynamics of Mountainous Area Near the House

It should be emphasized that the term ecosystem used in this paper is considered a natural community characterized by a constant cycle of energy and resources, the presence of consumers, producers, and decomposers, as well [...]
  • Subjects: Geography
  • Pages: 6
  • Words: 1240

Principals of Economics: An Overview of Argentina

Principles of economics help to understand the current situation and the possible development of the country. This project aims at exploring the situations in Argentina.
  • Subjects: Countries Studies
  • Pages: 12
  • Words: 624