Natural Sciences Essay Examples and Topics. Page 13

2,486 samples

Evolution Development: Introducing New Species

The collection of relevant information gave the basis for the introduction of the organism about the evolutionary development and analysis of the characteristics typical of already existing species.
  • Subjects: Biology
  • Pages: 7
  • Words: 2135

Environmental Microbiology Overview

When managed properly in accordance with the five principles of good management, they provide a number of benefits that include: Detoxification of wastewater Capturing renewable resources such as energy and water Sensing pathogens in the [...]
  • Subjects: Biology
  • Pages: 12
  • Words: 3298

An Effective Hazard Management

Given the transportation of the substance in molten form, there is the likelihood of violent reaction with other substances like water and hence result in explosions in addition to producing gases that are flammable.
  • Subjects: Chemistry
  • Pages: 11
  • Words: 2968

The Evolution of Vertebrae Teeth

The process of teeth like projections on the body of vertebrates evolving into teeth is clear in some type of sharks where the scales present on the body of the shark change to form teeth [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 1108

The Concept of DNA Cloning

In the approach based on cells both the replicating molecule or the biological vehicle known as the vector and the foreign DNA fragment are cut using the same restriction enzyme to produce compatible cohesive or [...]
  • Subjects: Genetics
  • Pages: 5
  • Words: 1238

Biot- Management Laboratory: Rat GLP

The vehicle for the test item was water and the test item was in powdered form, 98% pure and was stored below -200C and had an expiry date of Aug 2011.
  • Subjects: Biology
  • Pages: 7
  • Words: 1951

Artemia sp.: Morphology and Lifecycle

The male possesses a pair of the posterior penis, while the female has a conspicuous brood pouch located behind the thoracopods.
  • Subjects: Zoology
  • Pages: 2
  • Words: 686

Evolutionary Biology: Sleep Patterns in Mammals

This synthesis addresses the question of the origin of sleep in mammals and traces this phenomenon by studying the evolution of the mammalian brain and suggesting possible external factors that affect sleep patterns.
  • Subjects: Biology
  • Pages: 13
  • Words: 3539

Advanced Pathophysiology: Genetic Technology

In accordance to Tay-Sachs disorder, the specialist is likely to provide the following information: the origin of the disorder, what factors contribute to the occurrence of the disorder, characteristics of the disorder, treatment if available [...]
  • Subjects: Genetics
  • Pages: 6
  • Words: 1952

Review of the Affinity Column Method

The binding of the molecules to a solid phase can be done using the column chromatography in which the "solid medium is packed into the column and the initial mixture run through the column to [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1806

Process of Converting Bauxite Into Aluminium

Therefore, with the help of a refining process, Alumina is extracted from bauxite which in turn is converted into Aluminium metal with the help of smelting process. The process of refining the metallic ore in [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 965

Antibiotic Resistance in Bacteria

With the help of a pipette, a measure of 100 L of E.coli culture was spread at the surface of plates of minimal medium agar.
  • Subjects: Biology
  • Pages: 3
  • Words: 1158

Darwin’s Ideas of Natural Selection and Evolution

The hierarchical classifications can also be applied to the tree, while phylum, classes, orders, and the other elements of the taxonomy are represented by various locations in the branches In addition to the described elements, [...]
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 827

Musculoskeletal Bases of Human Movement

The arches of the foot are of particular importance by virtue of being tasked with the responsibility of allowing the foot to support the total weight of the body in an upright position with the [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1653

Estimation of Protein Concentration

In the determination of the concentration of proteins in different body tissues, we carried out various laboratory experiments; in which various body tissues were tested for protein content.
  • Subjects: Biology
  • Pages: 3
  • Words: 980

The Chemistry of Morphine

The method involves the extraction of the alkaloids from their combination with the Meconic acid in the opium poppy. And for continuous parenteral administration of morphine, the preferred route is subQ infusion.
  • Subjects: Chemistry
  • Pages: 7
  • Words: 2010

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

Resistant Bacteria Overview and Analysis

As the population of the world increases on a daily basis, it is becoming more and more important for researchers and other stake holders such as government bodies and members of the medical community to [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 566

Hazards that Remain after Industrial Sites Are Closed

It would be important in this report to analyze the chemical reaction nature of the wastes involved and expected effects to the environment keeping in mind the stream aquatic life and the human livelihood downstream.
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1329

Cell Communication Overview and Analysis

A signal on a cell's surface is transformed into a particular cellular response in a sequence of responses referred to as a signal transduction pathway. The nature of a signal molecule is like that of [...]
  • Subjects: Genetics
  • Pages: 4
  • Words: 1127

Warm Water and the Characteristics of Plaster

The sample which implied using chilled water has shown the latest initial, and effect of retardation) and final set ). 015 for the warm water sample, and 0.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 385

Iran as the First Dictator Country

The three reasons that Iran has become the first dictator country in the world are the absence of basic freedom, censorship of the media, and women's rights.
  • Subjects: Countries Studies
  • Pages: 2
  • Words: 661

T Cells: Definition and Functions

The na ve T cells in the secondary lymphoid; when they encounter an antigen presented on MHC of dendritic cells, they differentiate and proliferate into effector T cells, CD8 or CD4 T cells depending on [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 1002

Oral Microbial Flora: The Primary Research Requirement

The microbes that stick on the surface of the epithelial cells and the tooth do so with the aid of a biofilm. The pharmacist was the custodian of the information pertaining to the identity of [...]
  • Subjects: Biology
  • Pages: 8
  • Words: 2053

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

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

“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

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

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

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

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

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

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

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

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

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

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