Natural Sciences Essay Examples and Topics. Page 11

2,340 samples

Analysis of the Brine Shrimp

The Brine shrimp, which is also known as the Sea monkey, has been used in the modern world as food for fish and is of high quality because it can be grown using the aquaculture [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 811

Organ Systems: Functions and Malfunctions

Growth hormone, produced from the anterior side of the pituitary gland, is one example of the hormones that regulate essential processes in the body.
  • Subjects: Biology
  • Pages: 3
  • Words: 827

Benadryl: Structure, Properties, Interesting Facts

The organic compound has the following structure: The compound is highly soluble in water and alcohol because it is a polar organic compound and has a molecular weight of 291.82.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 671

Brine Shrimp Habitat

Not only in the natural water bodies can brine shrimps survive but also in artificial places as long as the water that they are in is salty.
  • Subjects: Biology
  • Pages: 2
  • Words: 534

Preparation and Properties of an Aqueous Ferrofluid

A ferrofluid is a liquid that contains very small pieces of a magnetic substance and hence acquires its magnetic properties when placed in a magnetic field. A ferrofluid primarily consists of small particles which are [...]
  • Subjects: Chemistry
  • Pages: 5
  • Words: 1385

Kiwi Fruit: Nutrition and Biological Molecule

The kiwi fruit is botanically referred to as Actinidia deliciosa and the common name used is Chinese gooseberry. The primary function of starch is derivation of energy.
  • Subjects: Biology
  • Pages: 2
  • Words: 594

Inhibiting Grass Growth by Salt

The practice results in an increase in concentration of salt in the soil and/or accumulation of salt on the foliage. Road salt inhibits the growth of grass.
  • Subjects: Biology
  • Pages: 2
  • Words: 591

Counterarguments to Human Cloning

One of the most controversial is the attempt to reproduce an exact replica of a human being through the process of cloning.
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 851

Energy Intake and Expenditure Analysis

Determination of relationship between energy intake and energy expenditure is therefore important aspect towards determination of maximal energy expenditure, optimization of fat expenditure as secondary source of energy after carbohydrates and capacity to achieve energy [...]
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1366

Consideration of the Reproductive Systems

In fact, reproduction in living things is classified as asexual or sexual depending on the nature of the reproduction. Cell division is essentially the process that occur in the cell, which lead to division or [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 570

Modern East Asians and Denisovans Share Genetic Material

The researchers did not explain the specific mode of delivery of the genetic material through hybridization thus it must be assumed that the Denisovans in Siberia were able to travel to Southeast Asia and intermarry [...]
  • Subjects: Anthropology
  • Pages: 6
  • Words: 1671

Uranium Mining and Issues Tied to It

Because the effects of radiation can be far reaching on the health of the workers and the people living in close proximity to areas where uranium is mined authorities should ensure that they provide information [...]
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1863

Evolution: Debunking Darwin’s and Lincoln’s Contributions

Although this statement is intended to demonstrate how life has generally evolved owing to the immense contributions of Darwin in the sciences and Lincoln in politics and democracy, it lacks merit as there were other [...]
  • Subjects: Evolution of Humans
  • Pages: 4
  • Words: 1190

Flash Chromatography Overview and Analysis

Pour the elution solvent to the silica gel then, using a gas pump, force the solvent through the silica. Without disturbing silica's top surface, the dissolved sample in the elution solvent is then gently applied [...]
  • Subjects: Chemistry
  • Pages: 2
  • Words: 607

Indirect Definition of the Unit of a Penny Weight

The beaker containing all the available pennies and, also the beaker plus half the number of pennies were to be separately weighed and recorded initially before the commencement of the experiment.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 688

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

Evolutionary Theory: Misconceptions Analysis

This is why scientists argue that when it comes to evolution, it is both a fact and a theory. It is a random mass of code that may be serving a certain purpose in the [...]
  • Subjects: Evolution of Humans
  • Pages: 3
  • Words: 824

Lipids: Fatty Acids and Glycerols

The membrane, made up of lipids, facilitates the fluid movement and transportation of the vital elements of the cell. A lack of these vitamins in the body leads to various diseases and conditions.
  • Subjects: Biology
  • Pages: 3
  • Words: 916

Coffee in the Development of High Blood Sugar

These high levels of glucose in the blood may even lead to the death of the victim. The net effect of this condition is high glucose levels in the blood plasma of the victim.
  • Subjects: Biology
  • Pages: 4
  • Words: 1126

Aspects About Zebrafish – Eco, Physio, and Behavior

The development of the embryo of a zebrafish begins immediately after the hatching of the egg and if the eggs are not fertilized, the development of the embryo stops after a few cell divisions.
  • Subjects: Biology
  • Pages: 5
  • Words: 1400

Cell Theory, Functions, Discoveries

The basic premises of cell theory include that the basic unit of structure in all living organisms is the cell. The other premise in cell theory is that the functionality of an organism is a [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 742

Viral Inhibitor of Human Caspases

This is especially so given the fact that throughout the development of this nematode, the number of cells in the organs is highly controlled and almost all mature C.elegans contain the same number of cells [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 879

Toxicology: Is Water a Toxic Substance?

It is well known that the solubility of ethanol in water is unlimited. Toxicity could be a characteristic of the formation of the reactive oxygen species which can also be present in water.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 550

The Effect of Acetone on Wheat Seed Germination

The experiment was carried out to study the effect of Acetone on the germination of wheat seeds. As a result, the study focused on the effect of acetone on the germination of wheat seeds.
  • Subjects: Biology
  • Pages: 6
  • Words: 1704

Seawater vs. Brackish Water Reverse Osmosis

The concentrations of seawater and brackish water differ considerably; hence, there is a distinction involving the concentrate acquired from seawater desalination plants and brackish water desalination plants.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 539

Desalination: Biofouling of Seawater Reverse Osmosis

Membrane fouling occurs as a result of the accretion of substances on/in/or near the membrane. More so, during desalination, the process is carried out in a way similar to the treatment of drinking water.
  • Subjects: Chemistry
  • Pages: 3
  • Words: 821

Richard Preston’s Idea of Nature

In addition, he has authored a number of books such as 'First Light', 'American Steel', 'The Cobra Event', 'The Hot Zone', 'Wild Trees' and 'The Demon in the Freezer'.'The Hot Zone' was published in 2002 [...]
  • Subjects: Biology
  • Pages: 6
  • Words: 1774

Psychiatric Genetics. Epigenetics and Disease Pathology

The switching on and off of the imprinted genes is the same regardless of the parental origin. The genome-wide DNA analysis revealed that there was a difference in DNA methylation of the glucocorticoid receptor gene [...]
  • Subjects: Genetics
  • Pages: 5
  • Words: 1503

The Photosynthetic Rate in Terrestrial Plants

In this regard, one is expected to establish the necessities of photosynthesis and discover the requirement of carbon dioxide and light for oxygen evolution.
  • Subjects: Biology
  • Pages: 4
  • Words: 1232

Nucleophilic Substitution Reactions of Alcohols

The objective of the experiment is to demonstrate how substitution reactions of alcohol occur. Specifically, the experiment aims to demonstrate the formation of 1-bromobutane from 1-butanol through a nucleophilic substitution reaction.
  • Subjects: Chemistry
  • Pages: 8
  • Words: 2137

Substitution Reactions of Alcohols

1 The SN2 substitution reaction occurs when the attacking atom or group is a strong nucleophile that hits the electrophile from the rear end thereby ousting the leaving group.
  • Subjects: Chemistry
  • Pages: 10
  • Words: 2743

City Centre Decline, Revitalisation in Riyadh

This paper provides a review of literature in reference to the issues of city centre decline, revitalisation, and people's perceptions focusing on the city centre of Riyadh.
  • Subjects: Countries Studies
  • Pages: 6
  • Words: 1666

Microbiologic Exposure

The transmission of disease requires the interaction of the environment, an agent, and the host of the disease. The following essay highlights some of the infections that may be acquired from an individual coughing in [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 564

Effect of MgCl2 and NaCl Solutions on the Germination

Moreover, in the first and the third groups, the wheat seeds were placed in wetted paper towels whereas in the second and the fourth groups, the wheat seeds were placed on top of the wetted [...]
  • Subjects: Chemistry
  • Pages: 7
  • Words: 2033

“What’s the Fuss about Stem Cells?”

The primary goal of this essay is to emphasize the importance of the research of the stem cells, provide a precise definition, and explain their functions in the body.
  • Subjects: Biology
  • Pages: 2
  • Words: 581

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

GEP (Gene Expression Profiling) on MM Prognostication

GEP is traditionally performed in thirty-nine steps, which include the identification of the experimental design, the collection of genes, identification of samples, array preparation, provision of a targeted synthesis, hybridization, transformation of the key data, [...]
  • Subjects: Genetics
  • Pages: 2
  • Words: 595

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

Principles of Nervous System in Animals

The procession and interpretation of the sensory organs is then effected by the nervous system to facilitate an understanding and interpretation of the surrounding. Cephalization consists of the actual concentration and accumulation of the functions [...]
  • Subjects: Biology
  • Pages: 3
  • Words: 873

Herbicide Resistant Weeds: Causes and Prevention

Herbicides are used by farmers to control the population of specific weeds in their farms, but genetic mutations in the part of some weed species can lead to their development of resistance against the herbicides.
  • Subjects: Agriculture
  • Pages: 2
  • Words: 568

Proteus Vulgaris Bacterium and Its Characteristics

As far as the size of the bacterium is concerned, most of the specimens of P. Finally, cystitis and prostatitis can be viewed as a possible prognosis in the case of contracting P.
  • Subjects: Biology
  • Pages: 2
  • Words: 558

The Effects of a High Consumption of Water

The null hypothesis would be that increasing the daily intake of water to eight glasses a day has a positive effect on the body, especially on the skin.
  • Subjects: Biology
  • Pages: 5
  • Words: 1373

Fungi and Plants’ Role in Survival of Other Organisms

First, the relationship between plants and fungi shows that plants depend more on fungi than fungi depend on them. Considering that more than 90% of all plant species on earth cannot live without minerals and [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 991

Atlantic Tomcod’s Adaptation Experiment

Conversely, those with the gene survived and passed it on to their young, making them immune to the toxins in the water and ultimately creating a generation of PCB resistant tomcod.
  • Subjects: Zoology
  • Pages: 5
  • Words: 1385

Genetic Diseases: Sickle Cell Anemia

This genetic disorder research paper aims to elucidate the underlying molecular causes of SCA as well as its symptoms, inheritance, treatment, diagnosis, and prevalence in certain populations.
  • Subjects: Genetics
  • Pages: 9
  • Words: 2499

The Analysis of Siamangs’ Behavior in a Zoo Setting

The results of the research disprove the hypothesis as it was assumed that siamangs would be less active in the zoo due to visitor's attention and limited territory. Therefore, it is possible to note that [...]
  • Subjects: Zoology
  • Pages: 5
  • Words: 1385

Analyzing the Economy of Cuba

The government controlled most of the means of production and employed a large percentage of the workforce. In the current paper, the author takes an in-depth look into the current status of the Cuban economy.
  • Subjects: Countries Studies
  • Pages: 4
  • Words: 1214

The Characteristics and Importance of Chickpeas

This demonstrates the popularity of chickpea and its application in various areas of the economy. The popularity of chickpea has grown significantly, and this has led to its demand in different parts of the world.
  • Subjects: Biology
  • Pages: 13
  • Words: 3665

Maple Syrup Urine Disease Pathogenesis

This results in the accumulation of the branched-chain amino acids within the body and the brain. The case study was done to determine the type of mutation that occurs in the genes of the patients, [...]
  • Subjects: Genetics
  • Pages: 8
  • Words: 2172

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

Types of Saturation Indices: Calcium Carbonate

According to Stein, the value of the index describes the stability of the calcium carbonate contained in water. In the event that the value of LSI is at zero, then water is said to be [...]
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1698

Vitamin B6: Biochemical Overview

In order to maintain the proper percentage of Vitamin B6 in the patient's body, it is imperative that the dietary allowances of the vitamin should be in direct proportion to the patient's age; more to [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 861

Theories of Panspermia and the Origin of Life on Earth

Panspermia is one of the theories of the origins and creation of life on our planet, according to which life forms appeared on Earth from the outside of the Universe and are transferred through asteroids, [...]
  • Subjects: Evolution of Humans
  • Pages: 2
  • Words: 573

Cell Energy Metabolism Controls

By definition, photosynthesis is a process whereby light energy is converted to chemical energy in the presence of CO2 and water.
  • Subjects: Biology
  • Pages: 2
  • Words: 671

Recent Advances in Artificial Photosynthesis

Specifically, scientists strive to use the known and change them into "functional, efficient, synthetic systems that will tap the endless supply of energy coming from the sun".[1] Researchers believe that artificial photosynthesis can work on [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1392

Ethical Issues Behind Feeding People With GMOs

Genetic engineering is the amendment of the genetic composition of a particular organism or simply the adjustment of an organism's transmissible matter in a bid to produce desirable characteristics.
  • Subjects: Genetics
  • Pages: 10
  • Words: 2814

The Science Behind Bacterial Aging

A bacterium is one of the organisms that undergo asymmetric division of cells hence does not undergo aging. In this bacterium, it is evident that the DNA process stopped because the stalk cell turned out [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 592

Understanding Emerging Diseases

Some of the diseases are spread when the agents are passed on from animals to humans through a process referred to as zoonosis.
  • Subjects: Biology
  • Pages: 2
  • Words: 559

Overview of Polyether Ether Ketone

The exceptional properties of polymers are determined by the extent and the organization of the molecular chain. According to Kurtz, the melting temperature is an indicator of the thickness and flawlessness of crystals.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1681

Gene Expression Using Quantitative Real Time PCR

The establishment of the exact products of the expression of certain genes calls for specialized molecular analytical procedures. This experiment had an objective to determine the gene expression levels of the genes encoding CHOP/GADD153, BiP [...]
  • Subjects: Genetics
  • Pages: 4
  • Words: 1104

Bacterial Diseases of Marine Organisms

The striped dolphin is a highly susceptible host of the bacteria and poses and the most potent reservoir and source of transmission of the infectious agent.
  • Subjects: Biology
  • Pages: 4
  • Words: 1211

Researching of the Nafion Resin

Prior to this process, a preliminary process was done where the NR/S-X samples were subjected to a 24-hour drying process inside an oven and at a temperature of 95oC.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1116

XPD Mutation: Healthcare Issues

A mutation in the XPD helicase hampers the ability of the TFIIH complex to execute its functions because of the increase in the rigidity of the protein.
  • Subjects: Genetics
  • Pages: 2
  • Words: 553

The Gene Therapy: Crucial Aspects

In the other common form of gene therapy, the modified gene cells are only corrected in the patient and the next generation does not get to inherit them.
  • Subjects: Genetics
  • Pages: 4
  • Words: 1173

Hydrogen – The Lonely One

My name is Hydrogen, and my name is usually denoted by the letter 'H.' I am the first born in a family of seven and our family name is Group 1. Due to my weight [...]
  • Subjects: Chemistry
  • Pages: 3
  • Words: 892

Petroleum Refining: Hydrotreatment Process

This is achieved since the process changes the composition of the renewable fuels into a form that is similar to normal fossil fuels used by vehicles.
  • Subjects: Chemistry
  • Pages: 6
  • Words: 1688

The Production of Aluminum

In addition to the MHD forces, the other force that acts on the bubbles is in the form of buoyancy and it originates from an anode.
  • Subjects: Chemistry
  • Pages: 4
  • Words: 1101

Self-Healing Materials and Their Using

The healing process of this material is almost similar to that of the aforementioned self-healing concrete except for the fact that the polymer uses the Grubbs' catalyst during the healing process while the self-healing concrete [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1111

Genetic Male Pattern Baldness

Vertex hair loss: Vertex hair loss can be observed on the top of the head which is crown area and does not touch the hairline of the forehead.
  • Subjects: Genetics
  • Pages: 10
  • Words: 2770

Bitter Taste Receptors Critical Review: A Focus on Tas2r38

The researchers are fascinated by the ability of this compound to be detected by the taste buds of certain individuals and remain undetectable by others. 1To this end, the compound is of profound interest in [...]
  • Subjects: Biology
  • Pages: 4
  • Words: 1096

Rapid Flow Cytometer Test Importance

Second, the protocol was modified by raising the temperature required for labeling the bacterial cells."The third modification was the addition of 0 8% ethylenediaminetetraacetic acid to the A31 buffer used in the pretreatment of milk [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 554

Root Modifications in Cyperaceae Species

In fact, low phosphorus and nitrogen supply in soils initiates the formation of these structures; with increase in supply of phosphorus and nitrogen leading to suppression in dauciform root formation. Caustis blakei is one of [...]
  • Subjects: Biology
  • Pages: 2
  • Words: 557

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

Anti-Corruption Strategies in Kazakhstan

On the backdrop of the notion that corruption is an international issue of concern5, the aim of this paper is to evaluate the success of anti corruption strategies in Kazakhstan.
  • Subjects: Countries Studies
  • Pages: 27
  • Words: 6939

Organic and Inorganic Compounds

Dry Ice if put in water, starts melting, and soon it becomes gaseous, as the temperature of CO2 increases. If it is placed in a bottle, the gas pressure tears the walls of the bottle.
  • Subjects: Chemistry
  • Pages: 2
  • Words: 542

Measurement of the Rate of Glycolysis Using Saccharomyces Cerevisae

The experiment was designed to investigate the impact of temperature on the rate of Glycolysis. The experiment results demonstrated that the rate of Glycolysis increases as temperature increases which resulted in the acceptance of hypothesis [...]
  • Subjects: Biology
  • Pages: 5
  • Words: 1607

Recovery Plan For Manorina Melanotis — Black-Eared Miner

Due to a decline in number in the 1980s, the bird was declared as an endangered species under the Australian Environment Protection and Biodiversity Conservation Act 1999 and the International Union for Conservation of Nature.
  • Subjects: Biology
  • Pages: 6
  • Words: 1675