Natural Sciences Essay Examples and Topics. Page 14

2,730 samples

Human Evolution and Animal Extinction

The recent scholarly findings prove that invasions of Homo sapiens to the Austronesian and American continents were the major factors that conditioned the extinction of numerous animal species.
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 825

Biotechnology in Response to SARS

Some of those outstanding responses that attempt to define biotechnology include the application of integration of biology and technology, a promising field that deals with using organisms, and a field of science that uses biological [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1082

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

Effects of the Interaction Genetic Diversity

This study though is trying to show the synergism between the UV-B and low genetic diversity as possible proof of the hypothesis that the UV-B could be the possible cause of declining amphibian populations.
  • Subjects: Genetics
  • Pages: 2
  • Words: 795

Microscopy and Cell Anatomy

A slide cover slip was placed on top and then the slide was observed under bright-field microscopy at the different magnifications of the microscope.
  • Subjects: Biology
  • Pages: 4
  • Words: 1257

Fuel Cell as an Alternative Energy Source

For the fuel cell to operate continuously the reactants must flow into the cell, and the products out of the cell and the electrolyte must remain within the cell.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1091

Heterogeneous Catalytic Hydrogenation

This article gives a description of the value of different methods of asymmetric hydrogenation and summary of results achieved during the experiments and further perspectives in this sphere of study.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 907

“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

Evolution and Natural Selection

The major topic addressed by the article is the impact of natural selection, developmental process, and genetic makeup on the variations and existence of organic diversity. This will be useful in understanding the process of [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 602

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

Sex Ratio Adjustment in Cooperative Breeders

The challenge that arises here is the understanding of how the selection is acting on the sex ratio of invertebrates. Other secondary sources of information that were used included the searching of the web and [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 831

Quantitative Acid-Base Titration Curve

For determining the mass of acetylsalicylic acid in 500 mg placebo and control the following calculations will be assumed to be done: Placebo 0.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 819

The Effect of Colonization and Dispossession

Warwick Anderson additionally states that the history of aboriginal health requires understanding of both the impact of colonization and the beginning of white nation-state.
  • Subjects: Geography
  • Pages: 4
  • Words: 1362

Origin of Life Hypotheses Analysis

The theory of prebiotic soup seemed to fill in the gap when Miller passed the electricity through the mixture of "water, methane, hydrogen, and ammonia" and obtained the "soup" in which the primitive life forms [...]
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 547

The Brain Regulation of Thirst

Here the stimulus is the thirst instinct which gives the brain the message that the fluid levels need to be adjusted to maintain healthy metabolism, the brain then sends messages to the muscles and other [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 589

Bacterial Resistance to Antibiotics

There is a concept called "selection" where the drugs can eliminate those that have no resistance to the antibiotic and leave behind those that have developed resistance to the bacteriolytic effect of the drug.
  • Subjects: Genetics
  • Pages: 5
  • Words: 1607

Animal and Reproductive Cloning: Current Events

It is the nucleus that contains the DNA of the donor. Its DNA structure is similar to the donor."The blastocyst is then transferred to the uterus of a surrogate mother".
  • Subjects: Genetics
  • Pages: 2
  • Words: 636

Reproductive Biology: Ovarian Surface Epithelium

The germinal epithelium was a preferred term over OSE because this outer ovarian epithelium was assumed to be the source of germ cells in embryos and adults, and besides this, pre-follicular and granulosa cells that [...]
  • Subjects: Biology
  • Pages: 40
  • Words: 10029

DNA Fingerprinting as Biotechnology Application

DNA fingerprinting, also known as genetic fingerprinting or DNA profiling is a method used to identify a specific individual. DNA fingerprinting is used to determine the parents of a person i.e.establish paternity.
  • 4
  • Subjects: Genetics
  • Pages: 2
  • Words: 384

Mutation and Variation in Dendryphiella

This paper elaborates the living conditions of the marine fungi, the studies that have been done so far on them, and the possibilities for the future finally discussing the results of the study being done [...]
  • Subjects: Biology
  • Pages: 14
  • Words: 4109

Bioterrorism and Biosecurity

The epidemiology of the infection is spread in the world evenly though in some of the parts there is only one form of Anthrax, for instance in the United States of America and therefore our [...]
  • Subjects: Biology
  • Pages: 8
  • Words: 2189

Inorganic Chemistry: Silver

It also exists in minute amounts in traces in ores of gold, copper, and lead."As a mineral, silver crystallizes in the cubic system.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 832

Research on Chromosomal Aberrations

However this is not seen in Drosophila as there is no crossing over in the male but inversions are seen more than translocations and fertility is decreased with single chromatid exchanges.
  • Subjects: Genetics
  • Pages: 2
  • Words: 336

The Role of Plant Genetic Engineering in Global Security

Although it can be conveniently stated that the adequacy, abundance and reliability of the global food supply has a major role to play in the enhancement of human life, in the long run, they influence [...]
  • Subjects: Genetics
  • Pages: 8
  • Words: 2185

Oceanography: Research on the Albatross

This research will concentrate with the biological studies of the oceans which generally refer to the study of the ecological characteristics, social and environmental interactions of the aquatic organisms in the marine.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1719

Glucose/Galactose Malabsorption

Glucose and galactose are the two simple sugars transported in the intestinal tract and the disaccharides are sugars such as sucrose and lactose which are made from the combination of two simple sugars.
  • Subjects: Biology
  • Pages: 3
  • Words: 895

The Present-day World of Biotechnology

There are a number of companies which stand on the top bracket of the biotechnology research, however, Boigen, Genzyme, Amgen, Genentech, and Monsanto are the largest of the companies in the U.S.
  • Subjects: Biology
  • Pages: 5
  • Words: 1423

Cloning of Plants at the Botanic Garden

Cloning is now considered to be an efficient means to grow plants in being the result of vegetative propagation while seeds are the result of the natural reproductive phenomenon of plants.
  • Subjects: Biology
  • Pages: 2
  • Words: 580

Journal of Cultural Geography Studies

In 1979, Ray and Pat engaged Alvar Carlson, who was a professor of geography at as the editor in charge of the journal of cultural geography at the BSGU.
  • Subjects: Geography
  • Pages: 3
  • Words: 1148

“Sperm Competition in Fish” by Taborsky

The fundamental theory of the study proposed that the time, space, and opportunity of the fishes were the main determinates of the reproductive pattern of male fishes in the context of sperm competition.
  • Subjects: Biology
  • Pages: 2
  • Words: 548

Sordaria Analysis: Biology of Sordaria

The color of the acosphores is not the same and is varied, where some of the acosphores are seen as black, while the others appear as white.
  • Subjects: Biology
  • Pages: 3
  • Words: 850

Beginnings of Life: Different Approaches

However, the fundamental question lies in the paradox of the beginning of Life on earth. It dealt in particularities of life, and after identifying the particularities of the life of organisms, the next step was [...]
  • Subjects: Anthropology
  • Pages: 5
  • Words: 1428

Bayou Region of Louisiana: Underserved Population Problems

One of the major heath care issues is that a great number of people cannot get instantaneous access to medical services as many of them live in remote villages or reservations while physician medical clinics [...]
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 868

Structure of Deoxyribonucleic Acid

The nucleotides join to one another by covalent bonds between the sugar of one nucleotide and the phosphate of the next. The sequence of nucleotides in the DNA strand can be different and vary in [...]
  • Subjects: Genetics
  • Pages: 3
  • Words: 1015

“Life Story” by M. Jackson

Hence, in the second half of the twentieth century the most of the attention was concentrated on revealing the secret of a gene.
  • Subjects: Genetics
  • Pages: 3
  • Words: 852

The Surface Epithelium of the Ovaries in Primates

In mammals, three forms are known, GnRH-I, GnRH-II, and the salmon GnRH. Both groups of synthetic analogs also down-regulate the expression of GnRH receptors and initiate the internalization of the cell surface receptors to the [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 4581

Biological Psychology: Memory

By and large, there is a general agreement that molecular events are involved in the storage of information in the nervous system. It is about to differentiate different kinds of memory, one which is short-term [...]
  • Subjects: Biology
  • Pages: 13
  • Words: 4417

Genetic Basis of Fitness Differences in Natural Populations

In the article to summarize, the authors recognized that one way genomics affect biology is the possibility of identifying and studying how the characteristics affecting fitness, a key issue in natural selection, are genetically based.
  • Subjects: Genetics
  • Pages: 3
  • Words: 1305

Insect Evolution

Based on this idea and the observation that the absence of flight is beneficial to some species of stoneflies the researchers asked the question if insects lose flight before they lose their wings.
  • Subjects: Biology
  • Pages: 3
  • Words: 1103

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

The Impact of Plastic and Contain It Bisphenol A

Bisphenol A is commonly found in majority of plastic water bottles, baby feeding bottles, in food can linings, in addition to teeth protection sealants used by dentists. This lead to the conclusion that some chemicals [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 337

The Science About the Experiments: Colloidal Systems

This Debye length depends on the concentration of the colloidal system and charge on the colloidal particles. This works on the principle of scattering of light by the particles in the colloidal system.
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1505

Protein Functional Site and Surface Matching

The Bayesian approach was best considered as the reliable platform for determining the structural similarity of functional sites from proteins with unknown functions using the database of known protein functions.
  • Subjects: Biology
  • Pages: 5
  • Words: 1624

Biogeography: Kary Mullis’ Development

The identification of biological material during the study of local and co-located biocenosis is of serious importance to biogeographers. It seems clear that this technology has a high potential for biogeographical studies because PCR allows [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 357

The Study of the Southern Hemisphere

The study of the Southern Hemisphere is of serious importance in Earth research because this area is associated with attractive mechanisms of dispersal of living beings and geographic and thus reproductive isolation of species.
  • Subjects: Biology
  • Pages: 2
  • Words: 389

Mapping the Terrestrial Reptile Distributions in Oman and the UAE

Author(s) of journal article being reviewed: Gardner, A. S. Title of journal article being reviewed: “Mapping the terrestrial reptile distributions in Oman and the United Arab Emirates.” Year of article: 2009 Journal name: ZooKeys Volume/Page Numbers: 31/165-177 What is the research question the author(s) are trying to address? The terrestrial reptile fauna of Oman and […]
  • Subjects: Zoology
  • Pages: 2
  • Words: 579

Ainu People of Japan

Also, due to the growing interest of foreigners and the Japanese themselves in the culture of the Ainu, many of them are engaged in cultural activities to attract tourism, which is also a source of [...]
  • Subjects: Countries Studies
  • Pages: 6
  • Words: 1559

Paired Box 6 (PAX6) Analysis

The paper's scope includes an investigation of how Paired box 6 gene was discovered, how it is characterized, including a description of the techniques used, and a review of articles that help to identify the [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1249

Automation in Horticulture

A farmer can situate the sensor and controller alongside the crops and outside, respectively, to allow the effective tracking of the underlying conditions and to adjust input trigger values.
  • Subjects: Agriculture
  • Pages: 6
  • Words: 1772

Influence of Muscle Development on the Carcass Quality in Pork

While prenatal muscle growth results from the increment in the number of fibers, postnatal mass development is achieved due to enlarged circumference and the existing hypertrophy length of myofibres. The variation in the rate of [...]
  • Subjects: Zoology
  • Pages: 9
  • Words: 2638

Bee Colony Collapse Disorder (CCD)

With the emergence of CCD and the various campaigns that followed in order to save the bee from extinction, several people have considered keeping bees in the urban centers.
  • Subjects: Zoology
  • Pages: 4
  • Words: 1091

Landscaping Membranes for Oil-Water Separation

For instance, one of the most important wastes of the oil treatment procedure is produced water, which in recent years has been the subject of increased attention by researchers in the field of colloid chemistry, [...]
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2460

Urban Ethnography in Grazian’s “On the Make” Book

Getting into a particular atmosphere, people try to conform to the order established in it. Thus, life in a particular city obliges people to comply with the internal orders established in it.
  • Subjects: Anthropology
  • Pages: 1
  • Words: 279

Soil Articles Summary Analysis

The video illustrates the trials of using cover crops to manage weed on the farm during the winter season. In the video, Peter describes the aspects of the winter season and its impacts on managing [...]
  • Subjects: Agriculture
  • Pages: 9
  • Words: 2690

Al Garhoud Community Overview

The culture of Al Garhoud people is considered one of the most distinctive cultures in the Kingdom of Saudi Arabia as well as in the Middle East.
  • Subjects: Anthropology
  • Pages: 4
  • Words: 1081

Unlearning Race as Biology

It is scientifically proven that race is not a reliable shortcut or proxy but simply a distraction that does not let see the real and the whole picture of one's condition and situation.
  • Subjects: Biology
  • Pages: 2
  • Words: 610

Vespa Mandarinia as an Invasive Species: Overview

On the contrary, it is the unique features that form the body of V.mandarinia that determine the increased research interest and justify the environmental position of the hornet as a killer.
  • Subjects: Biology
  • Pages: 11
  • Words: 3218

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

Transgenic Organisms and Evolution

As a rule, the foundation of transgenic technologies lies in the plane of change in the genome of the reference species.
  • Subjects: Biology
  • Pages: 5
  • Words: 1505

Cultural Geography and Politics of Jerusalem

One of the important Christian shrines of the Old City is Via Dolorosa - the Way of the Cross of Jesus Christ - from the Lion Gate of the Old City to Calvary.
  • Subjects: Geography
  • Pages: 4
  • Words: 1235

Environment and Land Conflict in Brazil

The government has a role to control and implement new policies and programs that have the potential to improve the experiences of more poor citizens.
  • Subjects: Countries Studies
  • Pages: 3
  • Words: 822

“2019 Corn Harvest: Will It Ever End?” by Kennedy

The author of this article describes the corn harvesting campaign of 2019 in the United States and the substantial issues that occurred during this campaign in particular areas of the country.
  • Subjects: Agriculture
  • Pages: 1
  • Words: 321

Aspects of Biology Techniques

Centrifugation is used for separating particles from a certain solution in a liquid medium with reference to their shape, size, or density, among other factors. Molecular cloning is applied for adding recombinant DNA molecules to [...]
  • Subjects: Biology
  • Pages: 1
  • Words: 333

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

Sequence Analysis of Aspartoacylase

Bioinformatics also applies in the field of transcriptomics, which is the analysis of the expression profiles of genes in various cells.
  • Subjects: Genetics
  • Pages: 8
  • Words: 2550

From the Chemical Components to the Whole Body

Connective tissue is one of the four types of animal and human tissue, which develops from the mesoderm and is found in between other tissues everywhere in the body.
  • Subjects: Biology
  • Pages: 2
  • Words: 544

Strawberry Pest and Diseases Management

Mechanical and physical control entails the physical removal of pests and applies to the management of sap beetles. The chemical control of pests in strawberries applies to the management of insects such as flower thrips.
  • Subjects: Agriculture
  • Pages: 3
  • Words: 943

The Elise-Van Creveld Syndrome

It revealed the presence of all permanent teeth except the mandibular left and right central and lateral incisors and the maxillary right lateral incisor.
  • Subjects: Genetics
  • Pages: 3
  • Words: 1822

Weed Issues in Strawberry

Despite this, weeds are not to be ignored, as 31% of participating growers consider them to be the greatest threat to their crop, compared to 38% for diseases and 4% for insects.
  • Subjects: Agriculture
  • Pages: 2
  • Words: 584

Microbial Interactions in the Gut of Canadian Geese

The nature of microbiota tends to affect the fitness and survival of the host in a number of ways. The knowledge of host-microbial interactions in the gut of Canadian geese becomes an opportunity to take [...]
  • Subjects: Zoology
  • Pages: 4
  • Words: 887

Female Aggression in Flies and Humans

In the animal world, they compete for the opportunity to mate with females, since the continuation of their genus depends on the number of mates.
  • Subjects: Biology
  • Pages: 3
  • Words: 1026

Is the World Ready for Genetic Engineering?

The process of manipulating genes has brought scientists to important discoveries, among which is the technology of the production of new kinds of crops and plants with selected characteristics. The problem of the advantages and [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 657

Data Visualization and GIS Solutions

This software ensures the relative autonomy of the geoinformation systems and users of these systems by delivering the possibility of using software products for local and global cluster solutions.
  • Subjects: Geography
  • Pages: 4
  • Words: 1168

Strawberry Pest Management

The purpose of this paper is to provide a brief overview of pest management in strawberry in general and in the context of Western Australia specifically.
  • Subjects: Biology
  • Pages: 2
  • Words: 606

The Climate in New York, Miami and Chicago

Although these locations are not enough to embrace the entirety of the varied American climate, they offer unique characteristics of the target settings, such as the proximity to the ocean, the propensity toward rapid changes [...]
  • Subjects: Geography
  • Pages: 5
  • Words: 1460

In-Depth Biological Research

It is essential to note in advance that the 16s rRNA nucleotide sequence of the gene was obtained using the open Nucleotide database owned by the National Centre for Biotechnology Information, which allows finding the [...]
  • Subjects: Biology
  • Pages: 10
  • Words: 2749

The Six Elements of Geography

It is situated in the north of Montreal and south-western Quebec and has a distinct administrative area. In addition, this economic sector has served as a significant source of revenue to the Quebec administration.
  • Subjects: Geography
  • Pages: 3
  • Words: 809

Maps, Atlases and their Essential Components

The title outlines the purpose of a map, and it is the first thing that a reader has to see. The north arrow helps to determine the positioning of the map and establish a link [...]
  • Subjects: Geography
  • Pages: 3
  • Words: 782

Fatty Liver and Gastrointestinal Tract Disease in Dogs

This research paper analyzes the knowledge surrounding the issue of hepatic steatosis in dogs and reveals a dearth of knowledge pertaining to the disease's impact on dogs' gastrointestinal tract.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1447

Biotechnology, Genetics and Reproduction

On the one hand, this is an opportunity to become parents for infertile couples, on the other hand, the ART industry acts as a new type of business and, therefore, we can talk about the [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1128

DNA and Evolution – What’s Similar

Transformation, in molecular genetics, is a change in the hereditary properties of cells as a result of the penetration of foreign DNA into them.
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 570

City Politics: Zoning Laws

The book covers a variety of problems and phenomena occurring in the dynamic interaction between governmental power, private stakeholders, and politics of identity.
  • Subjects: Geography
  • Pages: 2
  • Words: 563