Free Biology Essay Examples & Writing Tips. Page 3

The virus uses the HA spikes on its envelope to attach to the sialic acid receptors on the epithelial cells. The HA spike proteins assist the virus in attaching to the lower respiratory tract epithelium.

According to Edmond and William, the dawn of bioterrorism dates back to the nineteenth century, when Louis Pasteur and Robert Koech studied and understood the basics of microbiology. Moreover, another application of biological weapons is [...]

The smell was chosen because it was not necessary to interrupt the integrity of the subjects' sleep to introduce it into the experiment.

One of the main parts of the neuronal "chain" is a neurotransmitter. In the case of a voltage-gated channel, at rest, the activation gate of the channels is closed, and the inactivation gate is open.

Considering the potential health consequence of the Naegleria Fowleri amoeba, analysis to obtain a fast diagnosis is considered crucial to allow early treatment procedures.

Sodium is reabsorbed in the thick climbing appendage of the loop of Henle. The rest of the Na+ retention happens in the distal nephron.

However, the inability to control the stressor can reduce the prefrontal cortex's capacity to regulate stress responses. Exposure to stress noticeably weakens the effectiveness of the prefrontal cortex while stimulating more primitive responses of the [...]

The next phase, which is the introduction of the hookworm larvae, improves the gluten tolerance levels. The disease that the introduction of hookworm is expected to treat is celiac disease.

Humans are resistant to nematodes, certain parasitic nematodes, and they contribute significantly to controlling the spread of certain dangerous insects. While beneficial nematodes are exceptionally effective predators of pests, they are completely harmless to humans, [...]

Aesculus hippocastanum is not picky about food and can grow for a long time in the shade and on sub-hourly soils.

Species do not truly exist in nature due to evolution and the interconnected essence of existence; therefore, the concept is purely subjective.

67 percent of the genes in Pseudomonas aeruginosa are functional, and some of them may be virulent, that is, contributing to parasitization within victims.

First, information is processed in sensory memory, which perceives sensory events for a couple of seconds to determine whether the information is valuable and should be kept for a longer period. As information goes through [...]

It originated in Asia and Europe first and then was introduced to the U.S. The plant is common in 27 states of the U.

The structure of the proposal follows the logical layout, beginning from the background of the issue through the methodology to problem significance and research innovation.

The present study seeks to address the gap in the research regarding the executive function of VWM and consciousness. This study will follow a modified structure of Bergstrom and Eriksson experiment on non-conscious WM to [...]

The presence and content of 2-pentadecanone in the male may be related to the saturation of particular odors that excite the reproductive call of female birds.

Further, I will describe the three things I learned during the course: the structure and functions of proteins, Mendelian genetics, and genetically modified organisms.

A, changing the PM's permeability allowing entry of materials that may be harmful to the cell, and denaturing Proteins that make up the mosaic.

However, it is crucial to choose the right type of water, as in some cases, it can lead to a deficiency of vitamins, including B12.

Hippocampus plays an essential role in the memory formation process because it is the part of the brain where short-term memories become long-term memories.

Coal air pollution in England in the 19th century made the environment for dark-colored peppered moths more favorable and degraded it for light-colored ones.

Stress is a non-specific body reaction that occurs under the action of various extreme factors that threaten the violation of homeostasis and is characterized by stereotypical changes in the function of the nervous and endocrine [...]

It provides examples of scientific research about the application of stem cells in the process of the regeneration of bones and teeth.

As the centromeres of a cell align among the spindle equator, the genetic material of the maternal cell is duplicated, which allows for the two daughter cells to emerge.

Neuroscience studies how the brain works and what is the structure of the brain. It is important to understand the anatomy, physiology, biochemistry of the brain, and to correlate them with the behavior.

The Atlantic Cod occurs throughout the colder and the deeper regions of the Northern Atlantic, starting from Greenland to North Carolina and Scandinavia.

Data mining regarding the classification of iris flowers will be important in identifying the existing iris species, outlining the structural differences between the various species, identifying the possible causes for the differences, and underpinning potential [...]

However, viruses cannot sustain themselves and are not capable for independent replication, hence, it is not a living organism. To conclude, viruses are on the boundaries of the living and non-living area.

This type of medium is standardly used to isolate Gram-negative bacteria, with a source of nutrients in the form of carbon and nitrogen from the casein hydrolysate that is part of the C-CNA.

The main component of existence is the cell and is required by most of the tiniest living things, whereas others need only a portion of a cell.

E Coli is a common type of bacteria that is found in the intestines of human beings and the gut of several animals.

Loss of function of suppressor genes resulting from mutations becomes the cause of cancer development: the cell divides abnormally, increasing the cell mass of the tissue.

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.

This discovery invalidated the eukaryote-prokaryote dichotomy by revealing the concise division of the 16S rRNA tree into three primary branches, which was later distinguished as the three life domains: Eukarya, Archaea, and Bacteria.

The function of red blood cells lies in carrying oxygen from the lung to the rest of the body. Such a shape allows them to increase the area of the surface, which, in turn, creates [...]

Increase oxygenation of the ocean, changes in the chemical composition of the sea, and deposition of methane into the environment caused ecological hostility.

The opsin and retinal bonded in an eyespot, and through evolution, the organisms used it for sight instead of a proton pump.

The feedback loop essential components include the receptor, also known as a sensor, which detects changes in the body Remember that homeostasis is the ability of the body to maintain stable and balanced internal conditions.

One feature which is common for both types of cell models is the tissue of origin both of them stem from, which means that to some degree, they share the same genetic makeup.

The introduction also encompasses the description of the researchers' procedure, addressing the aim of examination and stimulation of the electrical signals in plants.

This is achieved when one-third of vegetable and two-thirds of animal fats are used in the diet. The sources of dietary lipid in food are fats used in food preparation and those contained in food.

For example, a giraffe's neck is stretched because it needs to reach the foliage on the tops of trees, and the anteater's tongue has become long to penetrate the anthill.

Both pathologies are united by the common term aneuploidy, which describes deviations in the karyotype of a diploid organism in which the number of chromosomes is not a multiple of the haploid set.

The pathogenicity of the bacterium is expressed in the infection of sites with purulent inflammatory processes and abscesses, which is particularly relevant to burn victims.

In the above table, humans rely on bees to facilitate pollination among food crops and use their honey as food. Concurrently, lichens break down rocks to provide nutrient-rich soil in the relationship.

The body's response to such signals often results in sweating, one of the most visible manifestations of the thermoregulation in the human body.

The central part of the system is located in the brain and spinal cord, and all reactions appear there, while the peripheral one operates all over the body to deliver the signals to the organs.

Since the extracellular matrix is primarily formed from connective tissue cells, it is pertinent to note that stromal cells are fundamental to the construction of the 3D matrix.

The excellent functionality of the different parts of the body, including the hand, thigh, neck, girdle, pectoral, and legs, are critical for the normal functioning of a human being.

It is in the position of balance that the body is able to function successfully and in a normal state. It is the role of these hormones to control the body's operations.

First, artificial kidneys are claimed to prolong the lifespan of patients with kidney problems. Artificial kidneys are hoped to improve the convenience, and effectiveness of dialysis.

It then progresses to the pupil, where the size of the pupil varies depending on the intensity of the incoming light, a phenomenon referred to the as pupillary light response.

Due to the anatomy of the lymphatic system, it is sometimes thought to be part of the main circulatory system in the body.

NK cells were first discovered in 1975 as lymphocytes of the innate immune system that can kill leukemia cells in vitro without previous sensitization: Since then, NK cells have been revealed to play an important [...]

For example, it can be between plants and plants or animals and other animals or animals and plants, whereby the survival of one is threatened or lowered by the existence of another especially when there [...]

Some of the basic parts of the brain include the cerebral cortex lobes namely; the temporal lobes, the frontal lobes, the occipital lobes, the parietal lobes, the prefrontal cortex, and the limbic system.

The bones have a covering of calcium compound cells at the surface that gives the bones the strength and structure that they require for protecting and supporting the body.

The reliable tests for conducting genetic testing should be more than one in order to remove the element of doubt on matching DNA bands.

When it is disrupted in the reproductive organs, the changes are passed on to the offspring as mutations, which are mostly harmful to the organism and related to many deaths in the course of the [...]

Beta-glucuronidase has wide application in the determination of urinary steroids as documented by Bernfeld and Fishman data. The purification protocol of -glucuronidase adopts a method that was described by Bernfeld and Fishman.

In the present biodiversity investigation, Vallilo and co-workers have analyzed the fatty acid and mineral composition of L.prisons Camb.seeds from four locations of S o Paulo State and evaluated the nutritive properties.

Exercise stimulates the release of neurotransmitters that reduce anxiety and induce a slight sense of joy. Serotonin encourages delight to exercise regularly; after a long break, the stimulation decreases, and restart workouts become challenging.

The population of these moths will have both dark and white moths at the starting point. The dark moths reproduced successfully due to lack of predation.

The findings are indicative of the fact that monkeys with striate lesions under standard conditions, where the target stimuli were delivered without the removal of the fixation point, did not move their eyes or saccade [...]

Media from the cells will be removed and replaced with the fluorescent dilution media and incubated for 45 minutes. For visualization, the PA solution with 1 wt% of a fluorescent analog will be used.

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.

Because IP3 is permeable in the protoplasm, it disperses throughout the cell and attaches to the IP3-receptor on the outside of the ER or SR, causing Ca2+ to be transported from the ER or SR [...]

The saliva of humans and some mammals contains amylase: the enzyme that begins the chemical process of food digestion. I took the pollution of the environment with heavy metals and the effect on photosynthesis.

They bind to the host's genetic material leading to either the incorporation into the host cell or destruction of the cell.

The key characteristics that define organisms in this class are they live in land, aquatic or marine environment, they have eyes, mouth, tentacles, and spiraled shells Clam, Muscle, Oyster, Scallop Bivalvia forms another class of [...]

The efficiency of this instrumental method is built on the idea of close similarity in the structure of DNA molecules to be more precise, the arrangement of nucleotides in it between closely related species: the [...]

However, the dangerous psyllids have been a threat that discourages farmers from investing in the fruit due to the impact the disease has on the plant both in the short-term and in the long-term.

Due to the high concentration of bioactive compounds, it has many health-related properties and is widely used in the pharmaceutical industry [1].

The main functions of the testes are to produce testosterone which is main male sex hormone and generating sperm. The epididymis refers to the long, coiled tube at the back of the testicles.

In particular, The research project included the collection and preparation of plant materials, namely extracts of Punica granatum L.and Nerium oleander, a direct biological experiment on animals, and blood and tissue analyses.

The key criterion for transduction is the presence of receptors in the cell may be on the membrane surface or in the cytoplasm to which an external initiator molecule attaches.

Ilic and Ogilvie argue that this is a dilemma between the obligation of doctors and scientists to save lives and the need to destroy it in order to obtain stem cells.

The topic of this audio record is a variety of problems with sleep and their impact on an organism. They proved the aforementioned conclusion and also paid attention to the impact of sleep deprivation on [...]

Bryophyta Broom Moss https://www.britannica.com/plant/moss-plant Hepaticophyta Marchantia

It is a kingdom of living organisms that contains eukaryotic, heterotrophic organisms whose cells are enclosed by cell walls. Their cell organelles are bound by membranes hence the name eukaryotic.

The bones in the snake are the last remaining parts of the pelvis though the snake's bones however, the snake does not have bones.

The coronavirus genome is as a share member of the Niclovirus order, such as the family Arterividrae and Toro virus genus. It is used to check the spread of the infection and trace those infected [...]

There are two species of pomegranate, the Punica granatum, and Punica protopunica.P.granatum originates from Yemen and is believed to be crucial in the ancestry of the present cultivated form of pomegranate.

SDS-PAGE separates isolated protein of which can be visualized by coo massive stain that binds to the experimental proteins and hence, the intensity of this resultant bands is used to give plasminogen estimation in a [...]

The effect of a feedback of this nature is the stabilization of the affected system with the aim of the correction of the resultant deviations from the point that is naturally set.

According to, there are a number of scientists that were involved in studies with an objective of convincing the society as well as science that the molecule of heredity is DNA.

This case study is about the attempts of Clyde Roper to find the giant squid. This canyon is known to be very deep and runs towards the Kermadec Trench which is also documented to be [...]

Antibiotic resistance The capability of a bacterial species to survive the impact of the administration of chemicals that are designed to induce death is known as antibiotic resistance.

One of the distinct cells in the blood or hematopoietic stem cell. Due to this functionality, the blood and skin cells' pose the greatest ability of differentiation and self-renewal.

The nutrients obtained by the plant are used in the growth and development of various plant parts. Thus, plants have mechanisms of regulating the distribution of nutrients and biomass to various parts of the plant.

Male and female reproductive systems have several similarities including the fact that most of the reproductive organs are developed from similar embryonic tissue that make these organs homologous. In male and female reproductive systems, [...]

This is analogous to the release of iP from ATP, and the high chemical energy resting in the phosphate bond is released, to be used for different body functions.

In this paper, the researcher sees to conduct a review of the literature on the current state of knowledge of the role of bacterial biofilms in medical infections.

A few scincetist have delved into the uncharted territory that tries to connect intelligences and the occurrences of certain genes. In from studies and careful analysis of the brain, scientists have made certain interesting discoveries.

From the experiment on the rats, it seemed that the new neurons could be produced in a cognitive challenge, then fade away.

A gross rise in the increase of weight has led to serious scientific research and debates to come up with the most efficient way to regulate the human body weight.its worth noting that the main [...]

The paper will study the dispersion and distribution of the tree and the shrub types of Euclea divinorum. The plot that will be followed in this paper is from the common distribution of the organisms.

The main purpose of this article is to discuss the role of various micronutrients before and after the birth of the child because much attention has been given only to a few micronutrients such as [...]

Second, the paper by Byne et al.not only studied the volume of the various interstitial nuclei of the human anterior hypothalamus, but also focused on investigating if the cell number in the various nuclei has [...]

In order to see if people are really at risk of having health issues because of ELF MF, the researchers paid attention to the changes in the sample's heart rate, arterial pressure, and skin blood [...]

This paper aims to investigate the article The Effects of Finish Sauna on Hemodynamics of the Circulatory System in Men and Women by Prystupa, Alicja Wo y ska, and Jansl y ski.

Microbial Physiology, the branch of microbiology responsible for the study of these enzymes, employs a spectrum of tests that detect the known set of enzymes unique to each species of microbe.

In mammals, OSE assists in the dissolution of the follicle apex and all the underneath connective tissue and helps in releasing the matured ovum. The oocytes and the surrounding cells of follicles constitute the fundamental [...]

The variety of crops grown and the need for agricultural measures for soil moisture and irrigation depend on the arable land belonging to a particular category.

The cochlea is a spiral fluid filled structure and it propagates the vibrations from the fluid to the nerve impulses that direct them to the brain via the auditory nerve which is a collection of [...]

The history of the discovery of DNA dates back to 1865 when Gregory Mendel used theories of heredity in analyzing the genetic profiles of pea plants.

This is because they are reported to contribute to "biofuel carbon debt" which is obtained by converting Grasslands or savannas, peatlands, and rainforests, to generate food crop-based biofuels in countries like United States and Southeast [...]

In the coming years, the increase in the global temperatures will make many living populations less able to adapt to the emergent conditions or to migrate to other regions that are suitable for their survival.

However, need for an investigative procedure, which can be carried out routinely in the lab for the detection of non-pigmented strains of P.aeruginosa, is obvious.

Numerous studies reveal that the rate of uptake and elimination of radionuclides is greatly influenced by the age of the subject.

In other words, this article is a summary of various facets of biology, biochemical pathogenesis, and the clinical practices that create impact to not only heterogeneity, but also the development of new techniques of treating [...]

The research performed by Kadereit and Claudia made a combination of ontogenetic and phylogenic strategies to distinguish the plants of Papaver genus.

The modification that happens on the leaves of the pea plant helps it to twine itself around other plants and gain support.

The function of the arteries is to carry oxygenated blood from the heart to other parts of the body, while the function of the veins is to transport deoxygenated blood from other organs to the [...]

Benign tumors are the swellings that grow but do not extend to other sections of the body, meaning that, if they grow on one spot, they remain there. Benign tumors rarely lead to death unless [...]

The purpose of the citric acid cycle is to break down 2-carbon units of acetyl into carbon dioxide while at the same instance transforming the energy from the acetyl group into GTP, which will be [...]

The process of a neuron sending a signal is called an action potential, which happens by changing electrical potential that is brought about by the passage of an impulse along the cell membrane.

Current research, as discussed by the symposium speakers explicitly cited in this article, reveals that genetics plays a fundamental role in evolution science and it is indeed the mutation of genes that actually allows organisms [...]

Given that the mutant has dark-brown eyes, an appropriate name for the mutant is 'cocoa' because the color of the eyes and their shape resemble cocoa grains.