Natural Sciences Essay Examples and Topics. Page 3

2,340 samples

Pinacol Rearrangement Laboratory Experiment

The first objective of the experiment is to elucidate the formation of a ketone from alcohol through the process of pinacol rearrangement in the presence of concentrated sulfuric acid, heat, and boiling chips.
  • Subjects: Chemistry
  • Pages: 11
  • Words: 3066

Pinacol Rearrangement Experiment

The pinacol rearrangement constitutes the dehydration of pinacol and the stabilization of carbocation by the shift of methyl. The mechanism of the pinacol rearrangement commences with the protonation of one of the two OH groups.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1230

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

The Rate and Order of a Chemical Reaction

The method of initial rates was employed in the determination of the order and rate law for the reaction. The rate of the reaction and the rate law expression for the reaction were then established [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 923

Sex Determination in Amphibians

Precisely, the dissimilarity between the sex chromosomes entails the sizes of the chromosomes, the patterns of binding, the centrometric index, the heterochromatin characterization as well as the transcription loops of lampbrush chromosomes.
  • Subjects: Biology
  • Pages: 3
  • Words: 908

Crocodile: Reptile Characteristic

In order to crash the prey, crocodiles have very sharp teeth and powerful muscles for holding the prey tightly within the jaws. The size of a crocodile depends on its ancient species.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1388

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

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

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

Benefits of Raising Your Own Fruits and Vegetables

Another major benefit of home grown fruits and vegetables happens to be the financial savings that result due to this; this is more the case if the home garden is planned to be for a [...]
  • Subjects: Agriculture
  • Pages: 6
  • Words: 1687

Geochemical Exploration Methods for Mineral Deposits

Geothermal cycle The use of tin dates back in the 3,500 B.C.and is one of the oldest metals that was used by man. In addition, blood or urine may be used to determine the amount [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1110

Why Are Glaciers Interesting?

It is very different from ice, the physical aspect of a glacier is very interesting, and the height of a glacier is another extraordinary factor that makes it very interesting.
  • Subjects: Geography
  • Pages: 2
  • Words: 531

Evolution: Primate Locomotion and Body Configuration

The idea that mobility of upper limbs was least in prosimians, greater in monkeys, greater still in apes, and most in humans was a useful idea for viewing the primates in earlier times.
  • Subjects: Evolution of Humans
  • Pages: 14
  • Words: 3944

Functions of Imagination in Paleontology

Paleontology involves the inquiry of living things like creatures, vegetations, and further beings that existed in the primitive period, that is, in excess of 5,500 years past. The creatures were living when the rocks were [...]
  • Subjects: Archeology
  • Pages: 10
  • Words: 2778

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

Red Blood Cells: Debunking Health Myths

When the kidneys detect a decrease in the level of oxygen under circulation through the blood, they produce a hormone known as erythropoietin, which in turn activates the differentiation of various precursor cells for RBCs. [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 605

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

Green Chemistry for Consumer Products

Green chemistry can be described as the abolition of the use or production of harmful substances in the creation, making, and use of chemical commodities.
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2195

Long Residue Processing in Oil Refineries

However, it is important to note that the amount of products produced from the atmospheric distillation process is not always proportional to the demand of the products rather it depends on the amount of crude [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1096

The Photosynthesis Rate of Waterweed

In this experiment, it was hypothesized that the rate of photosynthesis rises with an increase in the concentration of carbon dioxide and went on to test the hypothesis.
  • Subjects: Chemistry
  • Pages: 10
  • Words: 2767

Seed Germination Experiment: Results and Discussion

The results indicated that the number of germinated seeds differed according to the concentration of solutions. 0625M CaCl2 germinated quickly on the second day and attained the mean of about 10 germinated seeds on [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 967

Garbology as an Anthropology Study

The recording of the things by the frequency they were thrown away during the week allowed concluding that the waste of food products took the first place in the list.
  • Subjects: Anthropology
  • Pages: 2
  • Words: 573

Physical Geography: Landscape Appreciation

The figure below shows subtropical highs as show in the southern and Northern hemispheres respectively. The pattern is commonly found in the tropical region and shows rising motion close to the equator.
  • Subjects: Geography
  • Pages: 8
  • Words: 2293

Nanobiotechnology, Its Advantages and Disadvantages

While the world believes that nanobiotechnology is likely to shape future technology, it is important to consider both sides of the technology and have an analysis of its pros and cons.
  • 5
  • Subjects: Biology
  • Pages: 3
  • Words: 886

“On the Origin of Species” by Charles Darwin

However, an intense conflict over religious morality and the development of professionalism in science have led to the possibility of the evolvement of such revolutionary theories as the ones proposed by Darwin in On the [...]
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 834

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

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

Polar Ice Caps in Antarctica and the Arctic

This paper aims to outline the key factors affecting the formation and maintenance of polar ice caps, as well as to review and compare the characteristics of Antarctica and the Arctic.
  • 5
  • Subjects: Geography
  • Pages: 2
  • Words: 580

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

Deep-Sea Currents and Upwelling Along Florida

The thermohaline circulation influences the movement and population of the marine ecosystem and heat redistribution both in the sea and on the earth's surface.
  • Subjects: Geography
  • Pages: 7
  • Words: 2266

Archaeological Thematics of Sites

The aim of this paper is to examine the methods for analysis and interpretation of archaeological sites, artifacts, ecofacts, and features.
  • Subjects: Archeology
  • Pages: 4
  • Words: 1140

Strada, an Ideal Country and Its Features

This paper also outlines the need for a sound governance structure that premises on the principles of justice and mercy and a respect for religious diversity, as the tenets for a reliable social framework to [...]
  • Subjects: Countries Studies
  • Pages: 10
  • Words: 2852

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

Umm Al-Nar: Geoarchaeology and Cultural Heritage

This report aims at revealing the essentials of the Umm al-Nar site along with its significance in the framework of cultural heritage and tourism to understand the role of this geoarchaeological complex in nowadays national [...]
  • Subjects: Archeology
  • Pages: 8
  • Words: 2268

Major Geographic Qualities of Europe

One thing that struck me the most was the immense variation in relatively small areas of the continent. This can be attributed to the events in the history of the continent.
  • Subjects: Geography
  • Pages: 6
  • Words: 1814

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

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

SOFAR Effects on the Marine Life

The speed and energy of the sounds that are transmitted in the SOFAR channel are maintained without being altered because of the pressure, which increases with increase in depth.
  • Subjects: Geography
  • Pages: 2
  • Words: 599

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

“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

“The Facts of Evolution” by Michael Shermer

The major theme of the article is the justification of Darwin's evolution theory. The theory is based on the assumption that species are static, but the changes in species are very rapid, and, thus, the [...]
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 858

The Insect Effect on Human Life

The number of insects in the world exceeds the number of all the other species taken together. This way, the reduction of the number of pollinating insects will lead to the decline of productivity of [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 571

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

Lubricants Oil Production in Refineries

Despite being various categories of the lube oil as mentioned earlier in the project, mineral lube oil from petroleum is the commonly preferred lubricating oil to the synthetic lube oil.Fig.showing lubricating oil The history of [...]
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2245

Role of Planning Professionals

The new guidelines have to follow the six steps of urban planning which include determining the objective of the urban plan, formulating the strategy, determining the number of inputs and outputs that will be used [...]
  • Subjects: Geography
  • Pages: 15
  • Words: 3996

Central Asia: Uzbekistan Profile

The composition of this population is also unique in that most of the people are below 25 years and over 61.
  • Subjects: Geography
  • Pages: 3
  • Words: 966

Telescope and Microscope Discovery Combo

The paper will look into the history of the discoveries and their effects in the development of the human well beings as well as the enhancement of the human understanding of the surrounding nature in [...]
  • Subjects: Biology
  • Pages: 7
  • Words: 1932

Planet Earth: Caves Documentary

This documentary illustrates the formation of caves and shows the diversity of species that inhabit them. For instance, one can speak about the caves on the Yucatan Peninsula that acted as water wells.
  • Subjects: Geography
  • Pages: 2
  • Words: 322

Irrigation System Strategy

The amount of water that is applied during irrigation depends on certain factors among them the type of the crop, variability and type of soil, field size, labor needs and the method used in applying [...]
  • Subjects: Agriculture
  • Pages: 6
  • Words: 1642

Ethnography: An in-depth analysis

The focus of this process is the collection and recording of detailed information about the activities of a selected group of people or community with regard to the topic of the study, which proves useful [...]
  • Subjects: Anthropology
  • Pages: 10
  • Words: 2709

Heartland And Hinterland Relationship Concept in Canada

The Net Migration Pattern The pattern of migration in relation to the hinterland and heartland was dictated by the socioeconomic opportunities at the place of destination and the flow of migrants was from the hinterlands [...]
  • 3
  • Subjects: Countries Studies
  • Pages: 12
  • Words: 3156

Greco-Roman v. Modern Sexuality

The Greco-Roman world can be defined as the geographical area around the Mediterranean Sea and the Black Sea. The differences in social ranks affected the spread of knowledge in sexuality among men and women of [...]
  • 5
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1129

National Geographic Travelers Magazine analysis

The other related publication and electronic media by the same publisher include the National Geographic Kids, National Geographic Adventure and the National Expedition.
  • Subjects: Geography
  • Pages: 2
  • Words: 653

Origin of Human Races

According to Wallace it is true that the animals change their physical and internal make up to conform with the changes in the environment in which they live. Wallace gave priority to the origin of [...]
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1087

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

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

Human Development: Nature or Nurture?

With studies and theories carried out to examine the impact of nature on the personal development and personality traits, heredity is an important factor in the development.
  • Subjects: Anthropology
  • Pages: 8
  • Words: 2197

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

Gold’s Production and Processing

However, it is this severity of the social as well as the environmental issues associated with the production of the mineral that has generated a big concern from the global authorities leading to interventions of [...]
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1634

Norway’s Geography and Economy

Demographics The majority of the population is the Germanic people, accounting for more than 45% of the population. In terms of monetary value, Norway is among the wealthiest countries in the world.
  • 5
  • Subjects: Geography
  • Pages: 8
  • Words: 2263

Essentials of Biodiversity

At the same time, the knowledge and a more informed understanding of the whole concept of biodiversity gives us the power to intervene in the event that we are faced by the loss of biodiversity, [...]
  • Subjects: Biology
  • Pages: 7
  • Words: 1846

The Major Characteristics of Zambia

A total of eight countries are its neighbors; including Angola to the west, Mozambique, Zimbabwe, Namibia and Botswana to the south, Malawi to the east, Tanzania to the north-east, and the Democratic republic of Congo [...]
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 904

Strawberries History

They are the most famous and trendiest fruits in the planet. Strawberries are also used as ingredients in strawberry tiramisu which substitutes the coffee flavor for tasty and colorful strawberry effect.
  • 4
  • Subjects: Biology
  • Pages: 10
  • Words: 1484

Tokyo: Global Prominence and Significance

In order for Japan's capital to become a global place, the focus needs to shift toward the development of services and the expansion of economic activities beyond the geographical and business center.
  • Subjects: Countries Studies
  • Pages: 1
  • Words: 394

Canadian Ontario’s Economic Contributions

The report also analyses the presence of Bone's fault lines and the projection of the fault line in the next ten years. Therefore, the population in Ontario is concentrated in the southwest and dispersed in [...]
  • Subjects: Countries Studies
  • Pages: 7
  • Words: 1955

Ethical Issues with Fetal Anomalies

When genetic testing shows anomalies, it is essential for healthcare professionals to show compassion and provide evidence-based recommendations regarding the health of the fetus to the parents.
  • Subjects: Genetics
  • Pages: 2
  • Words: 613

Extracellular Enzyme Production Tests

Microbes produce exoenzymes to metabolize substances in their surroundings, and these microorganisms may be used in biochemistry assays to evaluate the presence and activity of exoenzymes.
  • Subjects: Biology
  • Pages: 6
  • Words: 1178

Wildlife Management and Extinction Prevention in Australia

This paper investigates the threats to wildlife in Australia and strategies for managing and preventing their extinction. In summary, this paper examines the threats to wildlife in Australia and outlines strategies for managing and preventing [...]
  • Subjects: Biology
  • Pages: 10
  • Words: 2902

The Importance of Teaching Alternative Evolution Theories

The theory of evolution should be the basis of the entire course of biology at school. The general representation of the leading alternative evolution concepts should be provided before the arguments for these theories implementation [...]
  • Subjects: Evolution of Humans
  • Pages: 4
  • Words: 1122

Captive’s Statuettes of Ancient Egypt

In particular, they were used in the rituals of protection of the land and the king, which were conducted in temples to eliminate the enemies of the king of Egypt.
  • Subjects: Archeology
  • Pages: 2
  • Words: 586

Anthropology: Definition and Purposes

It goes without saying that all three fields in the social sciences, psychology, sociology, and anthropology, play a vital role in the understanding of human beings, and their examination is highly essential and engaging.
  • Subjects: Anthropology
  • Pages: 1
  • Words: 283

Living Things: What Do They Have in Common?

Nevertheless, cellular structure is a feature of all living things: from unicellular bacteria and algae to multicellular plants and animals. However, that cycle of growth and development is natural to all living organisms.
  • Subjects: Biology
  • Pages: 4
  • Words: 856

Microbial Growth and Effect of pH on It

The above principle is used in this laboratory work, the aim of which is to evaluate the effect of the pH of the medium on the growth of microorganisms.
  • Subjects: Biology
  • Pages: 5
  • Words: 1137

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

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

Percent Composition of Calcium in Salt: Gravimetric Analysis

The precipitative gravimetric analysis allows the use of a net ionic equation for the measurement of the mass of solid calcium oxalate, determination of percent composition of calcium in the salt using the empirical formula, [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1126

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 Pros and Cons of the Lebanese Confessional System

The 1943 agreement by the representatives of the major dominant groups of that time, that is, the Maronite and the Sunni elite set the stage of the major political revolution of political Confessionalism in the [...]
  • Subjects: Countries Studies
  • Pages: 11
  • Words: 3015

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

The C-Fern Plant Laboratory Experiment

The fusion of the male and female gametes results in the formation and development of a sporophyte, which shifts to the diploid generation and the devolvement of spores.
  • Subjects: Biology
  • Pages: 6
  • Words: 1101

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

Mendelian Corn Genetics: An Experiment

Seeds are then sorted out on the basis of their color and shape and the obtained data recorded adjacent to the respective phenotypes. Determine the 2 value for each experiment, and use the table of [...]
  • Subjects: Agriculture
  • Pages: 3
  • Words: 484

Bacteria Identification: Enterobacter Aerogenes

However, it is sensitive to most of the antibiotics specific to the bacterium although the sensitivity is easily lost due to its unique mechanism for resisting antibiotics particularly through the production of lactamase enzyme.
  • Subjects: Biology
  • Pages: 4
  • Words: 1096

Comparison Mercury Testing in Fish Tissue Samples

For validity and reliability of the results, sample blanks are analyzed alongside the samples to ensure that no contamination is carried over to the next sample and also to check the accuracy of the analytical [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 623

Description of Mitosis and Meiosis

Mitosis is a type of cell division in which a single parent cell divides to produce two daughter cells that are genetically identical to each other and to the parent cells that divided to form [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 828

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

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

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

Lancelets’ Adaptation and Environment

The first describable organism in the evolutionary phylogeny of lancelets is the 'Branchiostoma Lanceolatum', a molluscan slug of the Limax species.
  • Subjects: Zoology
  • Pages: 2
  • Words: 572