Free Biology Essay Examples & Writing Tips. Page 5

741 samples

Differentiating the Fungal Phyla

Traditionally, the kingdom Fungi consists of four phyla known as Ascomycota, Basidiomycota, Chytridiomycota, and Zygomycota, though the classification of the fungi has shifted tremendously in recent decades to include Glomeromycota as a new phylum for [...]
  • Pages: 2
  • Words: 667

Drosophila Melanogaster: Centriole Reduplication

The aim of this study is to understand the mechanism of regulation that affects the centrosome duplication which will be a valuable funding for understanding of the cell behavior and preventing mechanisms of the cell [...]
  • Pages: 3
  • Words: 773

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 [...]
  • Pages: 2
  • Words: 554

Simple Detection of Pseudomonas Cells in Milk

The research conducted shows that it is possible to identify small amounts of pseudomonas cells in milk when on-chip flow cytometry is preceded by FISH, in a time frame of 16 hours.
  • Pages: 2
  • Words: 638

Biosphere: Sydney in Australia

Due to the rapid growth in the population and the rate of industrialisation in Sydney there has been an imbalance between the green spaces and the building open spaces.
  • Pages: 5
  • Words: 1508

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 [...]
  • Pages: 2
  • Words: 557

Cigarette Smoking Side Effects

Nicotine is a highly venomous and addictive substance absorbed through the mucous membrane in the mouth as well as alveoli in the lungs.
  • Pages: 2
  • Words: 603

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.
  • Pages: 6
  • Words: 1675

Physiological Differences Between Males and Females

Although the males have bigger muscles than the females, the latter have better blood flow during exercise, and use one hundred percent of the fibers in their muscles as compared to the former who use [...]
  • Pages: 2
  • Words: 557

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.
  • Pages: 3
  • Words: 908

Commiphora Molmol and Boswellia Papyrifera Plants

The next step in the experiment was also significant in ensuring the chemical components in the extracts are known and that the anti microbial activity is attributed to each of them separately.
  • Pages: 3
  • Words: 823

How Serotonin Affects the Brain and Addictions

The purpose of this paper is to discuss the effects that serotonin has in the brain and how it interacts with other chemicals in the body Serotonin is an indoleamine chemical secreted by the brain [...]
  • Pages: 20
  • Words: 5618

Researches of Proctoeces Maculatus

For a long time classification of the trematode has been a controversy among the research community due to the various morphological forms of the species that have been identified.
  • Pages: 3
  • Words: 899

Identification of Lactose-Fermenting Enterobacteriaceae

The other group, the non fermenting bacteria consist of some genera such as Serratia and Haffina. The aim of this experiment is to study Escherichia coli and Klebsiella pneumoniaea both of which are lactose fermenting [...]
  • Pages: 3
  • Words: 1496

Benthic Macroinvertebrate

The sampling of Macroinvertebrate constitutes a very important aspect of analyzing a habitat due to the fact that Microinvertebrates are fundamentally vital in defining the health of streams where they habour.
  • Pages: 5
  • Words: 1756

Development of the Chimpanzee Pancreas

This review will show the development of the chimpanzee pancreas, the anatomy of the fully developed pancreas including its histological cellular components, the molecular interactions that regulate the development of the pancreas, and discuss a [...]
  • Pages: 7
  • Words: 1736

Process of Gene Expression

One of the major mechanism through which gene expression is altered is addition where a base pair is added to the normal sequence hence changing the specificity of the protein that the code specifies.
  • Pages: 4
  • Words: 1123

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.
  • 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 [...]
  • Pages: 12
  • Words: 3298

Flagella Protein Isolation: Scientific Experiment

Intra-flagella transport revealed in a model of both membrane and non-membrane bound flagellar protein shuttling between the cytoplasm and flagellar compartments. Here interaction between the proteins and intra-flagella transport takes place.
  • Pages: 4
  • Words: 1016

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 [...]
  • Pages: 3
  • Words: 1108

Evolutionary Analysis of Asymmetric Limits

The aim of the paper is to discuss the principles of asymmetric limits, and the way they influence reproductive success as well as the sexual selection of the species.
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  • Words: 561

Invertase Enzyme: Description and Role

One of the crucial enzymes in the food industry is external invertase from Saccharomyces cerevisiae. The key functional state of the external invertase is a homodymer with a molecular mass of 270 kDa.
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  • Words: 1151

Backyard Bird Feeding Study

This type of feed is meant to attract different types of birds as many birds will find their favorite seeds in the blend.
  • Pages: 3
  • Words: 921

Artemia Spp and Light Intensity

The Artemia spp makes use of compound eyes as the light perceptive organ to distinguish any magnitude of light in its neighboring.
  • Pages: 2
  • Words: 668

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.
  • Pages: 7
  • Words: 1951

OECD-GLP Guidelines: Toxicological Tests

During and after the duration of exposure, the observational studies, biochemical analyses, hematological tests, and histological studies that were conducted on the rats show that the biological responses in the rats did not differ significantly [...]
  • Pages: 7
  • Words: 2275

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.
  • Pages: 13
  • Words: 3539

Classification and Naming of the Biological Species

The genus and species names are written in italics, with the genus name starting with an upper case letter and the species name starting with a lower case letter, e.g, Homo sapiens, Phyllomedusa callidryas, Toxicocendron [...]
  • Pages: 11
  • Words: 1160

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 [...]
  • Pages: 5
  • Words: 1806

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.
  • Pages: 3
  • Words: 1158

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 [...]
  • 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.
  • Pages: 3
  • Words: 980

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 [...]
  • Pages: 2
  • Words: 566

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 [...]
  • Pages: 3
  • Words: 1002

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 [...]
  • Pages: 4
  • Words: 1082

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.
  • Pages: 4
  • Words: 1257

“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.
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  • Words: 565

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.
  • 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 [...]
  • Pages: 2
  • Words: 831

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 [...]
  • Pages: 2
  • Words: 589

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 [...]
  • Pages: 40
  • Words: 10029

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 [...]
  • 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 [...]
  • Pages: 8
  • Words: 2189

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.
  • 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.
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  • 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.
  • Pages: 2
  • Words: 580

“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.
  • Pages: 2
  • Words: 548

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 [...]
  • 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 [...]
  • Pages: 13
  • Words: 4417

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.
  • Pages: 3
  • Words: 1103

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.
  • 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 [...]
  • 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.
  • 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 [...]
  • Pages: 4
  • Words: 1249

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.
  • 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.
  • Pages: 11
  • Words: 3218

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 [...]
  • 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.
  • Pages: 3
  • Words: 855

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.
  • Pages: 3
  • Words: 1026

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.
  • Pages: 2
  • Words: 606

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 [...]
  • Pages: 10
  • Words: 2749

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 [...]
  • Pages: 4
  • Words: 1128

Viruses: Alive or Not From Scientific Perspective

However, according to Bhella, no organisms can be entirely independent of the environment, and life at its core is interdependent. The fact that viruses evolved with other creatures is enough to state that they are [...]
  • Pages: 1
  • Words: 352

Physiology of Uromastyx Aegyptia

Since the soil in the harsh and arid regions is salty, this makes the vegetation to have a lot of salt elements in them.
  • Pages: 4
  • Words: 1340

Evolution of Mating by Charles Darwin

Sexual reproduction has proven to be the best strategy that permits the combination of varied genes that allows the offspring to be more flexible and adaptable to changes in the environment. The large size of [...]
  • Pages: 3
  • Words: 888

Unmanned Aerial Vehicle Technology and Its Aspects

It is expected that through an examination of the mechanisms involved in the Nagendran paper an effective biologically inspired mechanism for landing and inconspicuous observation could be developed to great effect.
  • Pages: 2
  • Words: 570