Natural Sciences Essay Examples and Topics. Page 5

2,335 samples

Habitat and Ocean Life Considerations of Bottlenose Dolphins

The temperate and tropical oceans of the world are home to bottlenose dolphins. On the American continent, bottlenose dolphins can be seen along California's southern beaches and the eastern seaboard from Massachusetts to Florida, and [...]
  • Subjects: Zoology
  • Pages: 4
  • Words: 1104

Epithelial Tissue: Structure and Functions

Because simple squamous epithelium is involved in the composition of the lungs, the heart, blood, and lymphatic vessels, it plays crucial functions in the body.
  • Subjects: Biology
  • Pages: 5
  • Words: 826

The Importance of Sleeping and Dreaming

Finally, I would not take this pill since I love seeing dreams and realize that this "miracle medicine" will cause too many negative consequences.
  • Subjects: Biology
  • Pages: 1
  • Words: 158

Gene Therapy: History, Description, Steps, and Future

The field of research concerning the modification of cells to cure certain diseases became known in the early 1970s. The success of the procedure was then published and performed in 2002.
  • Subjects: Genetics
  • Pages: 6
  • Words: 1722

Evolutionary Biology and Darwin

The lack of knowledge about the laws of heredity, the genetic and ecological structure of species, and the lack of experimental evidence of natural selection served as the basis for the growth of critical attitudes [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1406

The Reasons for Genetic Counseling

According to Abacan, "genetic counseling is the process of helping people understand and adapt to the medical, psychological and familial implications of genetic contributions to disease".
  • Subjects: Genetics
  • Pages: 4
  • Words: 1245

Ethics of Napoleon Chagnon’s Yanomami Tribe Study

More specifically, one of the most known anthropologists used a controversial approach in studying the everyday life of the Venezuelan tribe Yanomami concerning the falsification of facts and misinterpretation of cause-and-effect relationships.
  • Subjects: Anthropology
  • Pages: 2
  • Words: 589

The American Crow Species Analysis

The information in the article is very reliable as the study was conducted through a scientific procedure to reach a conclusion.
  • Subjects: Zoology
  • Pages: 2
  • Words: 859

Use of Pesticides in Agriculture

The general narrative on pesticide use in agriculture is the assertion that it saves labor and ensures higher crop yields. These adversities show just how greater danger than the usefulness of pesticide use is in [...]
  • Subjects: Agriculture
  • Pages: 1
  • Words: 346

A Lab Report for Microbiology Class

The main advantage of this microbiological method is the different concentrations of nutrients and oxygen at different levels of the depth of the beaker: this allows bacteria with different aerotolerant needs to grow.
  • Subjects: Biology
  • Pages: 2
  • Words: 576

First Reptiles Adaptation: Amniotic Egg Evolution

The amniotic egg evolution is an adaptation that allowed the first reptiles to thrive in a dry land the development occurred over 300 million years ago. The robust shell protects the egg from drying out, [...]
  • Subjects: Biology
  • Pages: 1
  • Words: 336

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

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

Organic Chemistry – Contributions and in Life

Despite many challenges imposed on the balancing of equations of pertaining reactions, in school my interest was drawn into the study of organic chemistry, which entailed a study of organic carbon compounds.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 586

Improving Stress Resistance in Agricultural Crops

The biotechnology involved in producing such crops faces many difficulties and there are a lot of considerations of the methods used to improve the crop's resistance that need to be assessed.
  • 5
  • Subjects: Agriculture
  • Pages: 9
  • Words: 2810

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

Cultural Anthropology, Gender and Kinship

Gender is the cultural construction of whether one is female, male, or something else. Gender stratification is the unequal distribution of social value by gender.
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1125

Massive Leak of Liquified Chlorine Gas

Small quantities of chlorine can reach the threshold of acute poisoning within a very short time, thereby leading to casualties.
  • Subjects: Chemistry
  • Pages: 19
  • Words: 2169

The Feeding Behavior of the Walrus

The walrus forages on the sea floor and platforms of sea ice. They must live in shallow seas, especially close to the shores.
  • Subjects: Zoology
  • Pages: 14
  • Words: 663

Senegal’s Population and Migration Profile

As per current projections, the population of Senegal is projected to increase for the remainder of the century. Roughly 42% of the population of Senegal lives in the rural area.
  • Subjects: Countries Studies
  • Pages: 6
  • Words: 1675

How SCOBY Changes Its Environment: Lab Experiment

The means of SCOBY growth in black tea, green tea, chamomile tea, and distilled water are not significantly different. The means of SCOBY growth in black tea and distilled water are not significantly different.
  • Subjects: Biology
  • Pages: 4
  • Words: 1214

Substitution Reactions of Alcohols: Practical Experimentation

The experiment aims to illustrate the way substitution reactions of alcohols transpire. In particular, the experiment aims to illustrate the way 1-butanol undergoes nucleophilic substitution reaction resulting in the formation of 1-bromobutane.
  • Subjects: Chemistry
  • Pages: 9
  • Words: 2290

North Africa/Southwest Asia (NASWA)

Water is the major problem in this region, and this explains why there is high concentration of human population in areas that lie next to water catchments areas.
  • Subjects: Geography
  • Pages: 4
  • Words: 1099

Electrochemical Methods of Analysis

The choice of method is determined by the chemical compound to be analyzed, the time available, the level of accuracy needed and the available time.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 632

Kleiner-Perkins and Genentech: Capital Met Science

The case setting is in the field of biotechnology and the main stakeholders were the founders Robert Swanson and Herbert Boyer who did not have the financial capabilities to establish the project.
  • Subjects: Genetics
  • Pages: 3
  • Words: 957

Microbiology and Its Role in Healthcare

Microbiology, as a broad scientific field, entails an array of concepts and issues that are of pivotal relevance to health care as a whole and the science of pathophysiology, in particular.
  • Subjects: Biology
  • Pages: 1
  • Words: 296

Communication Behavior Among Crows

The following paper is an analysis of the communication behavior among crows and similarities between this type of communication and human communication.
  • Subjects: Zoology
  • Pages: 6
  • Words: 1708

Conduction Phenomena in LI-Ion Batteries

Other challenges the researchers face are the constantly changing conduction properties of the anode and the difficulty in measuring the conductivity and microstructure of the solid-electrolyte film.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1669

The Gay Gene: Understanding Human Sexuality

If this gene existed and it was similar to a gay gene, it would explain the difference in gay people. If this happened, there would be a great change in the way gay people are [...]
  • Subjects: Genetics
  • Pages: 4
  • Words: 1219

Methyl Salicylate: Carboxylic Acids and Esters

In the experiment, salicylic acid reacts with methanol in the presence of concentrated sulfuric acids to produce methyl salicylate and water as the only products.
  • Subjects: Chemistry
  • Pages: 10
  • Words: 2741

Aspects of Biology as a Subject

Understanding the causes of disease variations and using the information to improve the health of the population will be my main benefits I will offer to the society.
  • 1
  • Subjects: Biology
  • Pages: 2
  • Words: 694

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

Pesticides’ Effects on Rivers and Streams

Once the pesticides are in the water, they affect aquatic life and the entire organisms in the food chain. Water is a basic need for all living organisms, and the harmful effects of pesticides in [...]
  • Subjects: Chemistry
  • Pages: 9
  • Words: 2528

Cracking Naphtha to Produce Olefins

The purpose of the study was to establish the amount of olefin, gasoline and other crude oils that were to be produced in the exercise. To study the properties and applications of olefin and naphtha.
  • Subjects: Chemistry
  • Pages: 15
  • Words: 4124

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

Biosphere: Sydney in Australia

Due to the rapid growth in the population and the rate of industrialisation in Sydney there has been an imbalance between the green spaces and the building open spaces.
  • Subjects: Biology
  • Pages: 5
  • Words: 1508

Biology: Photosynthesis and Respiration

In this process molecules of carbon dioxide gas and water are combined in the presence of the solar energy and chemical energy is formed.
  • Subjects: Biology
  • Pages: 2
  • Words: 849

OECD-GLP Guidelines: Toxicological Tests

During and after the duration of exposure, the observational studies, biochemical analyses, hematological tests, and histological studies that were conducted on the rats show that the biological responses in the rats did not differ significantly [...]
  • Subjects: Biology
  • Pages: 7
  • Words: 2275

Plastic Impact on Humans and Planet

Plastic is any organic material that when heated and pressure applied, it can expand and after it has been cooled it retains that shape it had been subjected to.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1079

Application of Catalyst and Energy Production

This work entails developing a catalyst coupled with the construction of a good reformer in the field of catalysis. The catalyst is released at the end of the reaction and may be used again.
  • Subjects: Chemistry
  • Pages: 35
  • Words: 8961

“Why Study Photosynthesis?” by Devens Gust

By revealing the information about the details of photosynthesis, Gust encourages people to investigate and to develop the innovated techniques thus applying them to the problem solution in the different spheres of life.
  • Subjects: Biology
  • Pages: 2
  • Words: 565

The Evolution of Insect Wings

This theory states that wings developed from a section of the legs of wingless insects. According to Carpenter, wings developed from gills through the evolution of gene expression with similarities between winged and wingless insects.
  • Subjects: Biology
  • Pages: 10
  • Words: 2695

Human Circulatory System and Evolution

The coronary circulation involves the movement of blood through the tissues of the heart while the systemic circulation involves taking blood to all the rest of the body tissues and back to the heart".
  • Subjects: Biology
  • Pages: 2
  • Words: 534

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

Evolution: Three Different Modes of Selection

The main question being asked and analyzed in the research is how selection occurs, how it contributes to evolution processes, and three different modes of selection.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 748

Geographical Research: Russian Federation

Among others, the state has the deepest lake in the world, Lake Baikal, and the longest European river, the Volga. The large size of the country has traditionally determined the trade industry of the state.
  • Subjects: Geography
  • Pages: 2
  • Words: 635

Geography of the United States

It is essential to learn the geography of the United States because it stands as one of the biggest countries in the world.
  • Subjects: Geography
  • Pages: 1
  • Words: 286

Ancient Chinese Inventions and Contributions

In spite of this stereotype, China is the Motherland of many inventions of the past. Gunpowder is one of the most significant and well-known inventions of ancient China.
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 846

Power Distance in Venezuela

Given the recent political protests in Venezuela, the research of the extent to which the power distance could be maintained and respected could be a valuable addition to cultural studies.
  • Subjects: Countries Studies
  • Pages: 1
  • Words: 303

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

Population Growth in Qatar

The increment is attributed to an increase in the state's population and an increased number of people using the infertility clinics' services.
  • Subjects: Countries Studies
  • Pages: 14
  • Words: 2138

Water and Energy Requirements of Curcubita Maxima

Ovaries are smaller relative to the male ones and are found at the base of the flowers. The use of the fertilizers should however depend on the degree of the fertility of soil where these [...]
  • Subjects: Agriculture
  • Pages: 2
  • Words: 733

Characteristics of Adult Development

The development entails the changes that are experienced at the various levels of growth from childhood to adulthood. Another influence is the socioeconomic status of an individual.
  • Subjects: Biology
  • Pages: 4
  • Words: 1311

Natural Sciences. The Soil Bank

Acreage Reserve Program of the Soil Bank, 1956 - 1958: Peanuts* were not in the 1958 programs. Achievements from the conservation reserve program: The soil bank program, as considered earlier, was meant to control the [...]
  • Subjects: Agriculture
  • Pages: 5
  • Words: 1393

The Best Place in the World to Live: Personal Opinion

I would favor living in a country that is ranked as one of the most beautiful places in the world, where the economy ranks among the topmost in the world in per capita, where very [...]
  • Subjects: Geography
  • Pages: 3
  • Words: 1160

Gattaca: Ethical Issues of Genetic Engineering

Although the world he lives in has determined that the only measure of a man is his genetic profile, Vincent discovers another element of man that science and society have forgotten.
  • Subjects: Genetics
  • Pages: 4
  • Words: 890

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

Flocking: The Animal Behavior Model

Flocking comes from the word "flock" described as a group of birds conducting flocking behavior in flight or when foraging. One principal advantage of flocking is the safety gained in numbers and another is increased [...]
  • Subjects: Zoology
  • Pages: 6
  • Words: 1259

Importance of Coral Reefs

The algae that is found in the sea also helps in reef building because they contain limestone and this is important in the integrity of the reefs.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1625

Vitamin A: Description and Usage

Vitamin A found in fruits and vegetable is referred to as Provitamin A carotenoids, these vitamins A are converted into retinol in the body where one molecule of beta carotene produces two molecule of Vitamin [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 509

Las Vegas and Boston: Cities Comparison

Las Vegas, known as The Entertainment Capital of the World, is renowned for the casino resorts and the entertainment associated with the gambling industry.
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 768

Lowland Gorillas Species Review

There are two species of lowland gorillas; the western lowland gorilla and the Eastern lowland gorilla. Mountain gorillas are the darkest in color, followed by the Eastern gorilla, and the western gorillas respectively.
  • Subjects: Zoology
  • Pages: 10
  • Words: 2946

The Solventless Reaction: The Aldol Reaction Condensation

To explore the base-catalyzed aldol condensation between 3, 4-dimethoxybenzaldehyde, and 1-indanone under solvent-free conditions; To purify the product through recrystallization; To evaluate the melting point of the product.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 582

A Comparison Between China and the USA

After the bringing down of the iron curtain and the fast progress under globalization, this distinction has been reduced to that of degrees, with China all set to assume the role of leading economic power [...]
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1095

Nuclear Magnetic Resonance Spectroscopy

Although the use of proton NMR has been applied for the determination of trace components such as the residual hydrogen in D2 O, the mixtures of dinitrotoluene, and the mixtures of drugs, its great merits [...]
  • Subjects: Chemistry
  • Pages: 13
  • Words: 3653

Demographics: East Side Ward of Newark, New Jersey

The city of Newark, New Jersey, is the largest city in the state, although it is not the state capital. Currently, as stated above, the majority of the city's population is black, with the following [...]
  • Subjects: Geography
  • Pages: 2
  • Words: 582

Bean Beetles and Oviposition Experiment

Then, the chi-squared test was performed to determine if the differences between the observed and the expected number of eggs laid on each bean were statistically significant.
  • Subjects: Zoology
  • Pages: 4
  • Words: 1131

Bacteria and Their Positive and Negative Effects

However, the described assumption is quite far from the truth, with a significant number of bacteria being not only useful but also essential to the functioning of the human body and the sustenance of life.
  • Subjects: Biology
  • Pages: 1
  • Words: 335

The Yanomami People and Their Development

One of the most remarkable features of the Yanomami is that they did not develop into an advanced civilization. The two factors affecting the development of the Yanomami people are now regarded as positive concepts [...]
  • Subjects: Anthropology
  • Pages: 1
  • Words: 282

Corn Plant’s Developmental Stages

After the emergence from the ground, the corn plant continues to grow and elongate over the next weeks to form a stalk.
  • 5
  • Subjects: Biology
  • Pages: 3
  • Words: 883

Aqueous HCl Solution Preparation

To prepare 500 grams of a 5% aqueous HCl solution, the chemist must have some basic information about the solute and the solution.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 668

Isotope Ratio Mass Spectroscopy of Cheese

The purpose of this study was to use isotope ratio mass spectroscopy to determine isotopic disparities of 15nitrogen, 13carbon and 2hydrogen in six cheese samples and distinguish them based on geographic, geological and agricultural practices. [...]
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1495

James George Frazer’s Role in Social Anthropology

The recognition of the power of the natural laws slowly led to development of religion. As such religion, in Frazer's view is the emancipation of the intelligent man from the throes of primitive magic.
  • Subjects: Anthropology
  • Pages: 9
  • Words: 2483

Food, Customers, and Culture in the Grocery Store

There also were many alcoholic drinks, and the section with beer was among the largest; lemonades, juices, and smoothies were also present. Both the store labels and the food labels quite often stressed the low [...]
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1211

Cellular Solids: Structure and Properties

According to Gibson and Ashby [8], the material in question can be seen in nature, for instance, wood or sponges are examples of cellular solids.
  • Subjects: Biology
  • Pages: 3
  • Words: 927

Providencia Rettgeri as an Unknown Microorganism

The common laboratory techniques employed in the identification of bacteria are the morphology of colonies and cells, biochemical reactions, physiological mechanisms, and genetic characteristics.
  • Subjects: Biology
  • Pages: 7
  • Words: 2203

Agriculture and Farming in Abu Dhabi

Many researches have been done on soil taxonomy in the UAE, with the invention of a non-absorbent type of soil that was one of the breakthroughs that have greatly influenced agriculture in Abu Dhabi.
  • Subjects: Agriculture
  • Pages: 5
  • Words: 1545

Anthropology: Research Paradigms and Schools

Initially, anthropology was considered as the science that studies the origin and evolution of the human physical organization and different races excluding the social and cultural characteristics.
  • Subjects: Anthropology
  • Pages: 14
  • Words: 3868

Cesar Millan as a Famous Dog Behaviorist

Millan earned the nickname "the dog boy" because of his natural ability to interact with dogs. Consequently, the dog behaviorist became a celebrity in different parts of the country.
  • Subjects: Zoology
  • Pages: 6
  • Words: 1662

Francis Galton’s Ideas as to Eugenics

This has subsequently led to the creation of the eugenics a discipline that focused on the improvement of the human qualities by applying the breeding techniques the humanity had already been familiar with.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 568

Bhutan’s History, Geography, Politics, and Economy

In the 1616 CE period, the arrival of the Tibetan Lama fostered the introduction of the dual system of secular and religious government that is still practiced up to date in Bhutan.
  • Subjects: Countries Studies
  • Pages: 17
  • Words: 3023

Elephant Communication and Its Types

Of great interest in the paper will be elephants' seismic communication. In essence, elephants have the capability of generating both strong and weak sounds.
  • Subjects: Zoology
  • Pages: 16
  • Words: 4550

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

Conflicts in Anglophone and Francophone Africa

This is worsened by the fact that currently there is a civil war in South Sudan, and it is extremely hard for such a young nation. Some of the conflicts are complicated by differences in [...]
  • Subjects: Countries Studies
  • Pages: 2
  • Words: 554

Genetic Engineering and Eugenics Comparison

The main idea in genetic engineering is to manipulate the genetic make-up of human beings in order to shackle their inferior traits. The concept of socially independent reproduction is replicated in both eugenics and genetic [...]
  • Subjects: Genetics
  • Pages: 3
  • Words: 809

Marine Life in United Arab Emirates

This report analyses the marine life in the UAE, covering detailed information about the various species of animals found in the region and their adaptation to the unique environment.
  • Subjects: Biology
  • Pages: 5
  • Words: 1474

Pacific Ocean: Essentials of Oceanography

The ocean has about 25,000 islands which are in excess of the entire number islands in all the oceans across the world. The volume of water in the ocean is about 622 million km3.
  • Subjects: Geography
  • Pages: 2
  • Words: 557

Swiffer Wet Refills Materials

These important steps are the selection of the fibers which can be used for the production of the wet mopping cloths; the process of laying the chosen type of fibers to make a definite type [...]
  • Subjects: Chemistry
  • Pages: 7
  • Words: 1913

Agriculture Effects on Wild Animals

An increase in agricultural activities has subjected a majority of the wild animals to the danger of extinction. Prior to the introduction of the mongoose in Hawaii, it was easy to find a Nene goose [...]
  • 5
  • Subjects: Agriculture
  • Pages: 3
  • Words: 856

Biological Perspective of Good and Evil

Wilson states that an individual can either acquire traits such as altruism and selflessness from a group in a way that enables other people to develop mannerisms that make them prosper at the expense of [...]
  • Subjects: Evolution of Humans
  • Pages: 4
  • Words: 1101

Medical Anthropology

An analysis of the power relations affecting biomedicine addresses questions such as who has the power over agencies of biomedicine, how and in what forms power is to be delegated, how the power is to [...]
  • 1
  • Subjects: Anthropology
  • Pages: 12
  • Words: 3322

Large-Scale Organic Farming and Food Supply

The issue of environmental sustainability comes up due to the emerging ways of farming like the great shift of the farmers to the use of organic methods of farming.
  • Subjects: Agriculture
  • Pages: 9
  • Words: 2498

Genetic Disorders: Causes and Treatment

The individual inherits some of the characteristics from the mother and the rest is inherited from the father. Genetic disorders may be passed from the parents to the offspring's during the process of fertilization.
  • Subjects: Anthropology
  • Pages: 6
  • Words: 1667

Bronfenbrenner’s ecological theory of development

Psychoanalytic theorists perceive that behavior is purely superficial characteristic, and the analyses of the symbolic meaning of behavior and the in-depth functioning of the mind is prerequisite for understanding development.
  • Subjects: Evolution of Humans
  • Pages: 4
  • Words: 1357

World Regional Geography: London and Paris Comparison

With regards the boundary, while the absolute location of Europe is defined by high and upper-middle economies that stretch to Eastern Russia, the relative location of Europe is limited to few states.
  • Subjects: Geography
  • Pages: 5
  • Words: 647