Natural Sciences Essay Examples and Topics. Page 3

2,317 samples

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

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

Cuban Counterpoint: Tobacco and Sugar

The scientist considered the primary task of studying the culture of Cuba from the inside, being a part of it, and focusing on the dynamics of complex processes of cultural interaction.
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 825

Analysis of Uniform in Japanese Schools

In addition, uniforms and the rules of school life contribute to the development of a sense of harmony and collectivism in children.
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1116

Nucleophilic Substitution Reactions of Alcohols

The objective of the experiment is to demonstrate how substitution reactions of alcohol occur. Specifically, the experiment aims to demonstrate the formation of 1-bromobutane from 1-butanol through a nucleophilic substitution reaction.
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2137

Primate Observation Paper

I was prepared to make observations on the behaviour of the three primates within their enclosed incarceration. The main behaviour characteristics that I observed include play-face, sniff/nuzzle, groom, new food, scent mark, and object manipulation.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1432

Petroleum Refining: Hydrotreatment Process

This is achieved since the process changes the composition of the renewable fuels into a form that is similar to normal fossil fuels used by vehicles.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1688

Natural History: The Ploughshare Tortoise

The study aimed to produce a phylogeny of the family Testudinidae through the analysis of five molecular sets: three genes in the mitochondrial DNA and two genes in the nuclear DNA.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1433

Psychophysics: Definition & Fundamentals

A psychophysical hypothesis, known as the theory of Signal Detectability uses a blend of statistical choice theory together with the idea of perfect observer modeling the sensitivity of the observer to events that are in [...]
  • Subjects: Biology
  • Pages: 6
  • Words: 1606

Museum “Sex of Animals” Exhibition

The museum has writings on the wall, and videos that show the animals in sexual acts. Same-sex sexual behavior in some of the animals led to a rethinking of same-sex sexual behavior in human beings.
  • Subjects: Zoology
  • Pages: 4
  • Words: 1086

Neolithic Revolution and Climate Change

At the primary stage of the evolution of human civilization, the rise of agriculture in the later part of stone age, also known as the Neolithic Revolution, was ultimately necessary to keep pace with the [...]
  • Subjects: Agriculture
  • Pages: 9
  • Words: 2523

Experiment: Growing Tomato Plants Under Light

The first seedling was planted into a garden under a condition of strong direct sunlight of about six to eight hours daily and was far away from the light source.
  • Subjects: Agriculture
  • Pages: 3
  • Words: 828

Contribution of Amedeo Avogadro to Chemistry

He schooled in Turin and having come from a family background of lawyers, his career was oriented towards law whereby at the age of 16 years he had already become a bachelor of jurisprudence and [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 583

Skeletal Muscle Physiology Using the Gastrocnemius of a Frog

Normally a muscle contraction begins with an action potential from the CNS through an alpha motor neuron, which is then responsible for transmitting an action potential down its own axon to the motor endplate resulting [...]
  • Subjects: Zoology
  • Pages: 5
  • Words: 1177

Smart Farming and Sustainable Agriculture

Smart farming allows for a wide range of options, from robotization and satellite imagery to the Internet of Things and the blockchain technology that increases the efficiency of crop cultivation by optimizing the use of [...]
  • Subjects: Agriculture
  • Pages: 8
  • Words: 2308

The Pinacol Rearrangement Organic Reaction

The first objective of the experiment was to demonstrate how pinacol undergoes rearrangement to form pinacolone under the catalysis of heat, acid, and boiling chips.
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1660

Breakdown of the Periodic Table

The Periodic Table is the tool for arranging elements based on the correlation between the periodic function of their atomic numbers and the properties of the elements in question.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 725

The UAE and Japan Comparison

The UAE is one of the most influential and prosperous countries in the world. Unfortunately, the innovation rate of the UAE is not considered to be one the best in the world as it occupies [...]
  • Subjects: Countries Studies
  • Pages: 2
  • Words: 675

Gekkonidae: Biological Characteristics

A comprehensive description of the family peculiarities started with the analysis of general characteristics of lizards and the features they obtained throughout the evolution.
  • Subjects: Biology
  • Pages: 4
  • Words: 1121

Killer Whale, Its Life Cycle and Behavior

The killer whale is the largest member of the dolphin family and a very fierce predator. In the Southern Hemisphere, the types of killer whales found there include type A, B, C, and D.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1388

Nomadic Pastoralism and Cultural Survival

This section looks into the case of the Northern Afghanistan nomadic pastoralists and the kind of animal they keep coupled with why they choose to remain nomadic pastoralists.
  • Subjects: Anthropology
  • Pages: 5
  • Words: 1507

Nature versus Nurture: the Simple Contrast

In the context of this essay, nature signifies the effect of genes in the DNA structure that are transferable from a parent to the offspring.
  • Subjects: Evolution of Humans
  • Pages: 4
  • Words: 1109

Nylons: Production, Characteristics and Applications

The general background provides information on the various terms used to describe nylon, the history of nylon, a comparison between nylon and other natural materials, such as cotton and silk, and the standards set aside [...]
  • 2
  • Subjects: Chemistry
  • Pages: 16
  • Words: 4161

Naphtha Reforming: Progress and Profits

In fact, some studies have explored the unknown elements of the catalytic process in naphtha reforming. It is also necessary to note that elements in the hydrocarbons and concentrations of other elements are responsible for [...]
  • Subjects: Chemistry
  • Pages: 15
  • Words: 4185

“Dancing Skeletons: Life and Death in West Africa”

The conflict is expressed in how the author describes her culture shock when introduced to the native women's way of treating children or the procedure of female genital mutilation, for that matter.
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1129

Evolution Process Definition

Gene flow is the biological exchange of genes from the inhabitants of a certain place to the next and also between species.
  • Subjects: Anthropology
  • Pages: 2
  • Words: 558

The Farmers’ Market Analysis

For the farmers the benefit lies in the cost saving of the production transportation and in the ability of the wholesale with the large grocery companies.
  • 5
  • Subjects: Agriculture
  • Pages: 3
  • Words: 837

Melanin Theory as a Pseudoscientific Claim

The architects of this theory believe that white people are mutants and that whiter skin is a form of albinism with the likes of Wade Nobles opining that "Blacks are fully human because of their [...]
  • 5
  • Subjects: Biology
  • Pages: 9
  • Words: 1645

Hackleburg, Alabama Tornado

It is worth to note that the April 28 2011 tornado did have three major tracks in the state of Alabama.
  • Subjects: Geography
  • Pages: 3
  • Words: 1033

Primary Mode of Subsistence in the Zulu Culture

This paper is aimed at bringing to the fore the primary approach of the Zulu culture subsistence and further analyze the impact of its subsistence on the Beliefs and values, Kinship and social organization aspects. [...]
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2184

Body Modification: Past and Present

Types of Body Modification The term 'body modification' refers to several methods of body transformation which include piercing, tattooing, branding, cutting, binding and inserting implants to alter the appearance and shape the body.
  • Subjects: Anthropology
  • Pages: 5
  • Words: 1419

GIS Data Organization: Spatial Data Structure & Models

Apart from the difference between data and information, there is a huge gap between geographic data and data in general. Therefore, Fazal's Spatial data structure and models is a crucial piece of information that helps [...]
  • Subjects: Geography
  • Pages: 8
  • Words: 2181

Acid-Base Extraction Lab: Procedure, Theory, and Recovery Results

The partition or distribution coefficient K = ASaq/ASorganic can be used to explain the equilibrium between the solute in the aqueous solvent and the solute in the organic solvent. Therefore, for efficient separation and purification [...]
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1235

Deeply Rooted in the Present by Kenny: Book Review

The study of this work contributed to the development of the science of anthropology and theoretical approaches related to it, as well as provide an understanding of the formation of the culture and identity of [...]
  • Subjects: Anthropology
  • Pages: 2
  • Words: 546

The Heat of Dissolution and Neutralization Reaction

The colorimetric method of analysis is used to determine the heat released during a chemical or physical process: the heat released in such reactions is transferred to the water by the change in temperature, of [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 1152

Evolution of Humans: The Main Theories

The process of evolution is one of the closest to the human being as people constantly invent new technologies and expand their minds.
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 950

The Thermoregulation Is and Its Importance

The importance of thermoregulation in the body includes: In case there are changes in the external temperatures, an organism must maintain a constant temperature of about 37 degrees Celsius for a human body to ensure [...]
  • Subjects: Biology
  • Pages: 1
  • Words: 367

Cooper and Silver: Physical and Chemical Properties

For the chemical and metallurgical industry, a thorough study of the properties of the materials used and the application of reference data for analysis and possible prediction of the results of a practical application is [...]
  • Subjects: Chemistry
  • Pages: 7
  • Words: 1976

Acid Extraction by Acid-Base-Coupled Extractants

Acetylsalicylic acid Physical properties Acetylsalicylic acid exists in the form of white crystals with a molecular weight of 180. The figure below shows the structure of acetylsalicylic acid Acetylsalicylic acid is soluble in water with [...]
  • Subjects: Chemistry
  • Pages: 10
  • Words: 3105

Determination of the Enthalpy of an Acid-Base Reaction

Of note, caution was taken to minimize the time of contact with the container as this would raise the temperatures of the container hence giving a false impression of the actual temperatures.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 827

Cells, Tissues, and Major Organs Systems

The report will cover the structure and functions of animal cells and organelles. It will also address the structure and functions of tissues and main organs of the body.
  • Subjects: Biology
  • Pages: 8
  • Words: 2269

Genetic Engineering Using a Pglo Plasmid

The objective of this experiment is to understand the process and importance of the genetic transformation of bacteria in real time with the aid of extrachromosomal DNA, alternatively referred to as plasmids.
  • Subjects: Genetics
  • Pages: 4
  • Words: 1207

The Analysis of Siamangs’ Behavior in a Zoo Setting

The results of the research disprove the hypothesis as it was assumed that siamangs would be less active in the zoo due to visitor's attention and limited territory. Therefore, it is possible to note that [...]
  • Subjects: Zoology
  • Pages: 5
  • Words: 1385

Sodium Chloride – Science of Salt

Sodium chloride is a very important compound and it has thousands of uses in real life, few of them are as follows: NaCl is a raw product that is commonly used in the production of [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 852

A Brief Discussion of Animal and Plant Cells

In plants, important cells such as the parenchyma cells help to store materials and support the process of photosynthesis. Cells found in the leaves of most plants fundamentally assist the plant to absorb the necessary [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 654

Shapes of Cells and Their Functions

The structure of cells in the nervous system is characterised by their elongated shape, which corresponds to the tasks performed by them.
  • Subjects: Biology
  • Pages: 3
  • Words: 855

Iron: Properties, Occurrence, and Uses

The price of the steel, which includes iron in its composition, differs from the steel grade. The main stage is heating of the iron ore in the blast furnace, removing the oxygen from the oxide.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 910

Rome as a Significant City in the World

Rome is the capital city of Italy and the most populated city in Italy. The city is located in the middle of the Italian Peninsula along the Tiber River.
  • Subjects: Countries Studies
  • Pages: 8
  • Words: 2099

Life History in the Anthropologic Perspective

These have been very significant in an analysis of the life history of my brother with a view to point out that self acceptance at every reality and experience of life can be elementary in [...]
  • Subjects: Anthropology
  • Pages: 16
  • Words: 4531

Oswald T. Avery and the Discovery of the DNA

Oswald Avery was a man driven with the desire to contribute to humanity but when he finally discovered something of utmost importance the world of science was not quick enough to give recognition to his [...]
  • Subjects: Genetics
  • Pages: 8
  • Words: 2429

Pfiesteria Piscicida: Classification and Analysis

Pfiesteria piscicida is a single-cell, a microscopic organism found in the environment for millions of years. 8S regions agree to the placement of Pfiesteria in the Peridiniales or a group between the Peridiniales and the [...]
  • Subjects: Biology
  • Pages: 7
  • Words: 1704

Plant Growth and Development With Music

The study by Kroeze is focused on the ability of plants to listen to music. The article by Landhuis is dedicated to the ability of plants to hear danger that comes in the form of [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 665

Chemical Raising Agent in Bread in Lab Experiment

Therefore, the gluten content of flour affects the physical properties of flour and the corresponding baked products. The leavening agent was baking powder, which consists of sodium bicarbonate and potassium bitartrate.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1703

Indigenous Australians: History, Culture, Identity

The meaning of a group, a family, the importance of partnership and the way these people percept co-existence all of these aspects are included into the studies of kinship.
  • Subjects: Anthropology
  • Pages: 5
  • Words: 1266

Kuala Lumpur Overview

The population growth of the Kuala Lumpur region varies from the core of the city to the suburbs. As much as there is a high population growth in the core, the growth of the population [...]
  • Subjects: Geography
  • Pages: 2
  • Words: 582

Super Weeds’s Advantages and Disadvantages

Farmers have adopted the use of both the herbicide and the herbicide resistant crop in large percentages. One of the largest varieties is pigweed which grows at a rapid rate and leads to the emergence [...]
  • Subjects: Genetics
  • Pages: 5
  • Words: 1404

“Skull Wars” by Thomas Hurst

According to prologue of the book 'Skull Wars Kennewick Man, Archaeology, and the Battle for Native American Identity, the author of the prologue mentions the intention of the whites or Caucasians to ascertain themselves as [...]
  • Subjects: Archeology
  • Pages: 7
  • Words: 1867

Whether or Not Human Cloning Should Be Allowed

One of the benefits of cloning is the fact that it is able to provide children to people with fertility problems. It is no wonder that the process of cloning cells to form embryos is [...]
  • 3
  • Subjects: Biology
  • Pages: 5
  • Words: 1350

Physical, Human, and Economic Geography of Italians

Its neighbors include France Switzerland and Austria to the north, Slovenia along the Alps, and the Italian Peninsula, the islands Sicily, and Sardinia to the south in the Mediterranean ocean.
  • Subjects: Geography
  • Pages: 5
  • Words: 1371

Chemical and Physical Properties of Ethane

The gas is used in the manufacture of ethane. The industry uses ethane to manufacture ethylene, which is a crucial resource in the manufacture of plastics and other chemical products.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 550

Basic and Applied Biology: Key Differences

The applied biology objective is to use the knowledge from basic science to solve potential problems affecting quality health, and an example is the Human Genome Project.
  • Subjects: Biology
  • Pages: 1
  • Words: 347

The Fragility of Haiti and Myanmar

In addition to these problems, the nation is one of the poorest in the world and is struggling economically. The study topic is as follows: What variables contribute to the difference between Haiti and Myanmar [...]
  • Subjects: Countries Studies
  • Pages: 7
  • Words: 1926

Red Panda: The Animal Observation

They have a diurnal and twilight lifestyle, sleeping in trees during the day and marking their territory, and looking for food at night.
  • Subjects: Zoology
  • Pages: 1
  • Words: 386

Hominids and Stages of Human Evolution

Ardipithecus ramidus, Australopithecines, Homo habilis, Homo erectus, and Homo Neanderthal are stages of human evolution with distinct physical appearances and behavior. The molars and premolars of Homo habilis were comparatively smaller than Ardipithecus and Australopithecus.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 563

Living in Switzerland: The Main Benefits

Switzerland is on the list of leaders not only in the country's economic state but also regarding quality of life. The country has a 13-month system: the salary is paid in double volume in the [...]
  • Subjects: Countries Studies
  • Pages: 1
  • Words: 378

Development Through the Lifespan – Middle Adulthood

Environmental influence presents the other side of influence affecting people's development in their middle adulthood. Berk explains this phenomenon in the example of menopause, which is a characteristic process in middle adulthood, and women's response [...]
  • Subjects: Anthropology
  • Pages: 4
  • Words: 975

Computational Biology as an Essential Research Area

In particular, the field of computational biology uses the principles of mathematical analysis, statistics, and computer modeling to test hypotheses and forecasting experimental results.
  • Subjects: Biology
  • Pages: 4
  • Words: 911

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

The Characteristics and Importance of Nervous System

The nervous system is rightfully considered to be one of the most complicated and significant systems of the human body, which is responsible for the quality communication and interaction between the organs.
  • Subjects: Biology
  • Pages: 6
  • Words: 1705

Adaptation and Natural Selection

Similar to the way letters of the alphabet are organized in a sequence to form words and sentences, these bases combine in a certain way to pass traits to the next generation.
  • Subjects: Genetics
  • Pages: 4
  • Words: 1119

The Concept of Selective Breeding

In order to carry out selective breeding, the breeder must first of all have a breeding stock with the desired qualities.
  • Subjects: Biology
  • Pages: 10
  • Words: 2724

What Is Mitochondria and What Functions Does It Have

The ratio of the proteins found in the mitochondria is the same as that found in the eukaryotic cell. The space between the inner and outer membrane has the same amount of ions and sugars [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1095

Strontium: Physical and Chemical Properties

The rest are artificial isotopes and, are a consequence of radioactivity. The table below shows a summary of the radiological properties of strontium isotopes.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 865

Plasma Discharge and its Examples

Here, Chang, Lawless and Yamamoto argue that plasma is the fourth state of matter, which occupies 99% of the universe and consists of particles known as ions, neutrons, and neutrals, which exist in a gaseous [...]
  • Subjects: Chemistry
  • Pages: 10
  • Words: 2752

Concepts of the Life of a Lion

As research studies show, the lion takes the second position in the feline family in terms of weight and size, although it is the strongest animal in the family; hence, its nickname the "king of [...]
  • Subjects: Zoology
  • Pages: 5
  • Words: 1613

The Effect of Sunlight on the Drying of Fabric Material

If we bring the magnet to the south side's structure, the needle on the disk will be oriented towards the magnet because the magnetic field of the material will be larger than the field of [...]
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1440

Genetics as a Field and Its Practical Use

Even in newborn screening, an area where genetic testing is excelling, parents opt to terminate the pregnancy for lack of a better solution to their condition.
  • Subjects: Genetics
  • Pages: 2
  • Words: 580

The Maps’ Importance in Human History

In fact Akerman praises the American road map of the twentieth century to be one of the greatest inventions at the benefit of the public.
  • Subjects: Geography
  • Pages: 2
  • Words: 566

Postmodernism in Anthropology

Thus, the change of epochs in the human philosophy was also the shift in the scientific focus on society, i.e.the social sciences could not escape the influence of the shift and followed it, adjusting the [...]
  • Subjects: Anthropology
  • Pages: 20
  • Words: 3603

Herdt’s Contribution to the Anthropology of Gender and Sexuality

To understand his comprehensive contribution to the field of anthropology of gender and sexuality this paper analysis his research on "ritualized homosexuality" and "boy insemination" in terms of these theories implications on scientific understanding of [...]
  • Subjects: Anthropology
  • Pages: 3
  • Words: 804

How Europe Underdeveloped Africa

For example, the highly centralized polities of Bunyoro and Buganda, located to the north of Lake Victoria, were the result of migrations, beginning in about the sixteenth century, of Lwo-speaking peoples originating in the territories [...]
  • Subjects: Geography
  • Pages: 4
  • Words: 1159

Phagocytosis Mechanism in Higher Animals

The phagocytosis process can only occur after the phagocyte binds to the receptors on the surface of the bacteria. If the phagocyte is not compatible with the available receptors, blood proteins, which are called opsonins, [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 868

Cocoa Production and Its Environmental Performance

There is a variety of significant issues related to the growth and production of cocoa. A risk for the environment and trees is also present due to the practice of cocoa farming.
  • Subjects: Agriculture
  • Pages: 4
  • Words: 1190

Acid Effects on Starch in Industrial Applications

This variability is apparent in the morphology of starch granules regarding size and shape, the amount of amylose, the structure of amylopectin concerning the length of chains, and the position of branching.
  • Subjects: Chemistry
  • Pages: 7
  • Words: 2011

Materials Used for Ethanol Production

The use of corn in the production of ethanol has a number of drawbacks. This is attributed to the fact that the production of high amount of ethanol requires corn in large quantities.
  • Subjects: Chemistry
  • Pages: 10
  • Words: 2849

Thin Layer Chromatography

The TLC sheet was placed in a universal bottle containing solvent A with the line of origin nearest to the bottom but above the solvent. The positions of the solvent and each pigment molecule were [...]
  • Subjects: Chemistry
  • Pages: 5
  • Words: 961

Manila City and Its Modern-Day Development

This curtailed the development of several areas in and around Fort Bonifacio and led to the main economic centre of the Philippines being located in Makati instead of within the main region of Manila.
  • Subjects: Countries Studies
  • Pages: 2
  • Words: 865

The Mayan Civilization in Diamond’s Theory

According to Diamond's theory, the rapid growth of the Mayan civilization resulted in the maximization of its population and the need for more food, which, eventually, caused overhunting, overfishing, deforestation, and destruction the soil.
  • Subjects: Anthropology
  • Pages: 2
  • Words: 525

The Replacement Model: Main Aspects

Therefore, the replacement theory is based on the idea that the modern type of human beings could evolve only in Africa.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 702

Hip Dysplasia and Canine Parvovirus in Dogs

In the case of the inhabited hip dysplasia, the disease is related to genetic changes. In most cases, it is the combination of two causes that leads to hip dysplasia.
  • Subjects: Zoology
  • Pages: 6
  • Words: 1685

Caenorhabditis Elegans: Unc-22 Gene Strong & Weak Alleles

Studies involving the manipulation of the unc-22 gene including the introduction of mutations and silencing various alleles of the gene have helped elucidate the structure and function of the gene, which is beneficial to the [...]
  • Subjects: Biology
  • Pages: 6
  • Words: 1507