Natural Sciences Essay Examples and Topics. Page 7

2,326 samples

The Concept of Biological Species

The concept of biological species defines species as populations that can interbreed and are isolated from other species reproductively, thus making different groups that are unable to interbreed with such other species.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 599

Forms of Animal Communication

As a result, human-animal tactile communication in most of the cases is limited to physical contacts between domestic animals and their owners.
  • Subjects: Zoology
  • Pages: 10
  • Words: 2791

Evolutionary Time Lag and Good Genes Selection

Some genetic changes deal with the problem of the time lag and help with adjustment to the environment. Humans can adapt due to the ability of the brain to participate in one's learning process.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 634

Agricultural Nutrient Pollution and Its Reduction

The solutions that have been proposed for the issue are varied: there is the possibility of upgrading farms with the help of better technologies, controlling the use of fertilizers and waste discharge with the help [...]
  • Subjects: Agriculture
  • Pages: 5
  • Words: 1357

Ancient Anasazi and Maya Civilizations’ Collapses

The fact that Chaco Canyon was settled and the inhabiting civilization caused the loss of woodland was discovered during studying midden of packrats because it changes with alterations in diet.
  • Subjects: Anthropology
  • Pages: 2
  • Words: 622

The San People of Namibia and Their Life

The San people live in a country called Namibia, which is located at the west coast of the southern part of Africa. As discussed earlier, one of the good virtues they have is that they [...]
  • Subjects: Anthropology
  • Pages: 3
  • Words: 865

One-Child Policy and Its Influence on China

We will analyze the results of the arrangement about populace development, the proportion amongst men and women, and the proportion between grown-up kids and elderly guardians.
  • Subjects: Anthropology
  • Pages: 10
  • Words: 2823

“Why Evolution Is True?” by Jerry A. Coyne

The reader is able to use this vivid substantiation of claims to understand the author's need to introduce the aspect of God who is at the center of these natural happenings.
  • Subjects: Evolution of Humans
  • Pages: 10
  • Words: 2858

Belarus: Geography, History, Economics and Culture

The Republic of Belarus is a European country and a member of the former Union of Soviet Socialist Republics. The Republic of Belarus is a country situated in Eastern Europe on the eastern part of [...]
  • Subjects: Countries Studies
  • Pages: 25
  • Words: 6983

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

The Strait of Hormuz: Importance and Current Situation

The Strait of Hormuz is the sea way connecting the open ocean with the Persian Gulf. Located between Iran and Oman, the Strait of Hormuz is the only open connection between the Arabian Sea and [...]
  • Subjects: Geography
  • Pages: 2
  • Words: 582

Why Evolution Is True?

A study of some of the fossil evidence using some of the modern tools shows a clear pattern of evolutionary change that make it easy to appreciate that evolution could be true.
  • Subjects: Evolution of Humans
  • Pages: 10
  • Words: 2788

Polymer Based on Ethylene Glycol – Chemistry

Ethylene glycol polymers are products of additive reactions between ethylene oxide and ethylene glycols. The boiling point and state of ethylene glycol polymers are proportional to molecular weight.
  • Subjects: Chemistry
  • Pages: 20
  • Words: 5450

Types of Flow and Formations of Rivers

The evident river formation is the deposition of silt or siltation of the river bank as the river meanders across the rugged terrain.
  • Subjects: Geography
  • Pages: 6
  • Words: 1712

Anthropology Issues: Extinct Hominid Java Man

Java man's fossil was discovered in Java, an island in Indonesia. Java man's fossil discovery occurred along river Solo's bank in the Eastern part of Java.
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1118

Archeology: The Enigma of Queen Hatshepsut

Queen Hatshepsut's remains have not been found completely, and there is much evidence to discuss the role of Thutmose III in the female pharaoh's disappearance.
  • Subjects: Archeology
  • Pages: 2
  • Words: 558

Spons Definition and Types

This factor is mostly attributed to the fact that when spons are used, it is easy to indentify an animal with a problem.
  • Subjects: Agriculture
  • Pages: 2
  • Words: 537

Chemical Hazard of Plastic Industry

The rest of the report concentrates on the introspection of the chemical hazards of plastics, effects of the hazards, and then wide up by looking at possible solutions.
  • 1
  • Pages: 6
  • Words: 1680

The Connection Between Totemism and Structuralism

For instance, according to the biological linkages, kinship systems are constructed from the relationship between the father and the son, the mother and the daughter, and the father and the mother.
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2215

Hydroponics Application in Abu Dhabi

The several advantages that the hydroponics techniques offer include: The use of hydroponics systems in the production of plants allows for the cultivation of the crops in all seasons of the year when using greenhouses.
  • Subjects: Agriculture
  • Pages: 12
  • Words: 3387

The Indian Agriculture Sector

Given the significance of the agricultural sector to the economy, the government introduced the 11th five-year plan to provide support and incentives to farmers and other stakeholders in order to enhance production of food.
  • Subjects: Agriculture
  • Pages: 6
  • Words: 1662

Cell Membrane Permeability

When cells are contained in solutes with a majority of big molecules, the rate of permeability in cell membranes will automatically decrease.
  • Subjects: Biology
  • Pages: 3
  • Words: 842

Afghanistan: Country Profile

03 1 Table 2: Population pyramid dynamics Source: Self generated from Indexmundi Figure 4: - Life expectancy Source: Indexmundi Human Development Index Figure 5: Afghanistan's HDI indicators for 2011 comparing with other countries Source: UNDP [...]
  • Subjects: Geography
  • Pages: 5
  • Words: 1411

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

The Huaorani of Ecuador

In such an organization, there is a wide variety of help for the day to day chores that is defined according to the ability and position of the family member.
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2478

Discovery of Polonium and Radium

The curious mind of Pierre on why a substance seemed to defy a scientific law started the journey that led to the discovery of polonium and radium.
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1388

History Of Biotechnology

In the course of the First World War, the processes of fermentation were set up in order to carry out production of acetone from the solvents of paints as well as starch to be used [...]
  • Subjects: Biology
  • Pages: 7
  • Words: 1908

A Time Capsule from The 1960s

From the outlook, the simplicity of the watch suggested that it was stored at the time when this kind of electronic device was innovated.
  • Subjects: Archeology
  • Pages: 5
  • Words: 1381

Visiting Ghana, Africa

Going to Ghana, it is important to understand family traditions in the country, the role of women and the role of the aged people.
  • Subjects: Geography
  • Pages: 4
  • Words: 1093

Transpiration Process in Plants

Initially, the roots absorb water by the process of osmosis due to the variation in the concentration of the water level between the soil and roots.
  • 3.3
  • Subjects: Biology
  • Pages: 2
  • Words: 562

The Four Forces of Evolution and Variation

Differential reproduction is linked with the way in which organisms adapt to the environment such that if the adaptive traits of these organisms are transmitted to the next generation, the behavioral and physical traits of [...]
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 566

Agriculture Development in Economic Development

This they attribute to the division of labour, where the workers that perform the basic, manual jobs that demand a lot of strength are the least paid, while those that perform the lightest and sophisticated [...]
  • Subjects: Agriculture
  • Pages: 7
  • Words: 1993

The Whiteness of Nerds

The issue highlighted in the present article is the way racial markedness of certain groups of youth in the modern American society is achieved through the usage of certain linguistic forms, and the way this [...]
  • Subjects: Anthropology
  • Pages: 3
  • Words: 868

Marine Conservation and Coastal Development

The committee should comprise of a balanced membership for holistic review of the coastal development projects. The lack of legislation related to marine conservation is also a major setback.
  • Subjects: Zoology
  • Pages: 2
  • Words: 620

The Local Inhabitants of the Mountain Side

That is not being amazing enough, the world's hottest mark is let out to the audience of the video. The best example of the dangerous species outlined is the puma.
  • Subjects: Geography
  • Pages: 2
  • Words: 425

Drug Analysis: Amphetamine and Methamphetamine

Analysis of amphetamine and methamphetamine is carried out in a series of steps that entails employment of numerous tests for conclusive identification of this group of stimulants.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 861

The Human Cloning Debates

Nonetheless, the scientists opposed reproductive cloning claiming that the practice undermines the uniqueness of humankind and that it is unethical to put the lives of clones in a condition of being susceptible to harm or [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 1197

Farming and Animal Consumption

In essence, debate on farming methods and animal consumption has been a challenge not only to farmers but also to the society. It is, therefore, necessary to consider that numerous changes would be required to [...]
  • 1
  • Subjects: Agriculture
  • Pages: 7
  • Words: 1931

Dolphins as Social Creatures

The advanced intelligence of dolphins, as well as their developed abilities to communicate, refers to their need to communicate. What is more important is that interaction of dolphins with humans is also of great interest [...]
  • Subjects: Zoology
  • Pages: 4
  • Words: 1120

Accessibility to Safe Drinking Water

The first is to dig wells in the rural and arid areas to aid the people to have access to water. The other alternative is to treat water and use it in the home.
  • Subjects: Agriculture
  • Pages: 2
  • Words: 551

Clovis People Origin and Culture

The Clovis people came and settled in wide areas of North America; and nowadays, there are various studies, questions, and debates which concern the uncertain period they existed and their influence on the cultures of [...]
  • Subjects: Archeology
  • Pages: 7
  • Words: 1902

East Asian Region Overview

Han Dynasty of China led to increase in trade and culture in Central Asian and China, a community of Buddhism was established in the middle of the 1st century.
  • Subjects: Geography
  • Pages: 4
  • Words: 1151

Lewontin on quasi independence

An example of quasi independence is a series of mutations that occur in the body of a zebra so as to change the length of its bones. Likewise, in quasi independence, he argues that the [...]
  • Subjects: Genetics
  • Pages: 3
  • Words: 956

Elephants in Entertainment

This paper thus seeks to critically bring forth how they are captured from the wild and the impact of cruel treatment they receive and the deplorable condition in which they inhabit. From the review of [...]
  • Subjects: Zoology
  • Pages: 2
  • Words: 628

Spain’s Geography and Culture

Spain, claiming over half a million acres on the Iberian Peninsula, fronts on the North Atlantic, the Bay of Biscay, the Mediterranean Sea, and the Balearic Sea.
  • Subjects: Geography
  • Pages: 2
  • Words: 250

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

Census Tract 78.09: Oahu Island

In addition, most of the population that amounts to about 75 % of the total count is known to dwell on the 'urban' side of the island.
  • Subjects: Geography
  • Pages: 8
  • Words: 2163

On Animal Abuse and Cruelty

In these cages, the animals are confined indoors for the whole year denying them their right to roam and feel the heat of the sun.
  • 5
  • Subjects: Zoology
  • Pages: 5
  • Words: 1369

Pesticides: Health Risks, Benefits, and Susceptible Populations

The capacity of these compounds to harm the nervous system may contribute to the association between pesticides and neurological illnesses. Since their bodies are still growing and their organs are still immature, children are more [...]
  • Subjects: Agriculture
  • Pages: 2
  • Words: 655

The Impact and Applications of Microorganisms in Human Life

Microbes can be used to prevent infections and also to improve the taste and aroma of food products. Microorganisms are also used in industrial microbiology to produce biotechnological products and the components that go into [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 637

Retired Showhorse Health and Arthritis Management

During the given transitional life stage, a lessened activity can cause changes to the horse's coat. The organization highlights the standards and norms for managing a retired horse's health.
  • Subjects: Zoology
  • Pages: 7
  • Words: 1889

Social Learning and Cognitive Research in Great Apes

The differences in the findings indicate that the conditions in which primates live dictate their cognitive and learning behaviors. A better explanation of the differences in learning and cognitive behaviors is the role of environmental [...]
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1044

Bacterial Identification Through Biochemical Testing

The laboratory tests allow for the identification of the difference between gram-positive and -negative bacteria in practice. The samples were used to determine the bacteria and their type based on the results of the tests.
  • Subjects: Biology
  • Pages: 9
  • Words: 2395