Free Biology Essay Examples & Writing Tips. Page 3

The other significance of vitamin D in the body is that it can be manufactured when exposed to sunlight. What sets vitamin D apart from the other nutrients and arguably makes it a super nutrient [...]

Adrenocorticotropic hormones - These are hormones that stimulate the adrenal gland to produce hormones. Thyroid-stimulating hormones - These are hormones that stimulate the thyroid gland to manufacture hormones.

Specifically, the effects of two variables at once were evaluated: the proportion of white plumage on the brown coloration of male birds and the concentration of 2-pentadecanone in the reproductive secretion of individuals.

It is suggested that all the different viruses account for the quantity exceeding the number of stars in the universe. Viruses are called obligate intracellular parasites as they need the host cell in order to [...]

Secondly, a few drops of gram's iodine were added to the bacterial smear and then allowed to sit for sixty seconds before rinsing with water.

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 [...]

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.

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.

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.

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.

As a consequence of these results, the variety of foods found in forest flora that include lichens may be linked to varying optimum conditions for establishment and development.

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.

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.

The salivary glands contribute to the breakdown of the nutrients in the mouth while the pharynx directs the eats to the esophagus.

In particular, the field of computational biology uses the principles of mathematical analysis, statistics, and computer modeling to test hypotheses and forecasting experimental results.

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 [...]

The egg cell was applied in the experiment because of its properties. The experiment was conducted as a kitchen science experiment.

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.

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.

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.

An example is a cellular fermentation, a pathway of breaking down sugars in the absence of oxygen. Yeast is one of the organisms that perform this procedure in the presence of a substrate to produce [...]

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.

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.

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.

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.

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

Proteins are the main structural building blocks of the body that are used in building and repair of worn out tissues.

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

The hypothesis of the second experiment process was that Elmer's Glue changes into a rubber-like material from a glue-like substance. After the second process of combining Borax solution with Elmer's glue, a rubber-like material was [...]

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 [...]

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 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 [...]

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.

The clinical manifestations of chlamydial infection depend on the virulence of the pathogen, the duration of the stay of chlamydia in the body, the topography of the lesion, the severity of local and general reactions [...]

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.

In ancient times, the Old Testament of the Bible, the Jewish Torah, and the Babylonian Talmud describe the pomegranate as a divine fruit conferring forces of fertility, good luck, and abundance.

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.

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 [...]

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.

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.

The following paper would outline a process which would allow the researcher to grasp an understanding of the way life is created in order to fulfill all the different functions and operations of a cell.

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.

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.

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.

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 [...]

Enzymes should be in a proper shape to function well and resemble the way a key in the lock functions and they way it is affected by the nature.

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.

It is important to understand the body and control the functions of the reproductive system and coming up with drugs that can inhibit reproduction in a safe manner.

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 [...]

Secondly, the liver makes most of the cholesterol in the body which is still not important and the body takes only about 50% of the cholesterol in the food eaten and the rest is eliminated [...]

The multispecies microarray that was developed was able to show patterns of gene expression in zebrafish once exposed to estradiol and 4-nonylphenol.

The main reason for conducting this research is to understand the dependency of the head injuries got in childhood after the development and changes in the human brain in adulthood.

While undertaking the isolation, the authors noted in their study that one of the distinctive properties of the Aequoria aequoria is that it had the ability to emit a greening luminescence.

All through their investigations and findings, the researchers attempt to uncover the paper's hypothesis that stated, "To determine the factors that influence MMR in mammals". To select the best data, the researchers employed the standardized [...]

Gastropods constitute one of the major groups of the molluscs that also comprise the Bembicium nanum in the top shell category. The objective of this study is to evaluate the size variation and Zonation in [...]

The aim of this exercise is in the measurement and recording of the size of cells and tissues. Insert the eyepiece graticule into the eyepiece and then reattach the base of the eyepiece to the [...]

The main function of the flagellum is to help the cell in locomotion. In addition, a change is observed in the appearance of the stool.

Light enters the eye through the cornea and passes through the iris to the retina where it is focused. Photoreceptor cells are linked to the optic nerve fibers and make the image more visual.

The article serves the purpose of examining the role of NOG, a gene that is essential in bone development and its role in breast cancer.

The individual functions of the individual organs of the body ensure that the body is at some equilibrium; all needs of the body are met.

The mixture of water and medium was then poured into the petri dish and swirled to completely cover the surface. The colour of the colony was then observed.

Cyclooxygenase is a gene responsible for the regulation of the synthesis of prostaglandins.mRNA is derived from the sequence of the DNA in the process of transcription.

Carbon monoxide poisoning is a situation where the inhaled amount exceeds the acceptable levels and cause undesired effects to one's body. This is one of the main laboratory evidence of carbon monoxide poisoning which was [...]

The microplate indicated a good match with the organism an ID appeared in the bar area, which is green in color, at the middle of the screen which is at the pinnacle of the results [...]

In addition, there have been studies at the level of genes and proteins known as molecular biology and at the level of community which is referred to as epidemiological and ecological microbiology.

The structure of the DNA dictates the external features the plant express which have widely been used to determine the kind of a plant environment in which they fit.

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 [...]

The nervous system of human beings, as well as that of animals, is sensitive to EMF, and its continued exposure to the same factors affects its functions.

This is similar to the camera lens which focuses the light to the film which is normally at the back of the camera.

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.

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.

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.

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 [...]

The interconnection between life and evolution remained a mystery until the radiance named Charles Darwin illuminated the scientific world with a novel piece of work titled "On the Origin of the Species using Natural Selection [...]

Mitosis is a type of cell division in which a single parent cell divides to produce two daughter cells that are genetically identical to each other and to the parent cells that divided to form [...]

Anaerobic power is the energy stored in the body. Once the Adenosine triphosphate is up, the phosphate Creative is the one that remains in the body.

The study of the origin of life is the most lively and interesting area in biology, and this might be because of the earlier definitions of biology being the study of living things.

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.

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.

The purpose of the SDS was to disrupt the secondary and tertiary conformations of the sample proteins. The supernatant was transferred to the MITO tube and the pellet discarded.

One of the main issues that should be considered is the adaptability of a species. This is one of the main issues that should not be overlooked.

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 [...]

One of the primary purposes of the introduction is to convey the importance of the research being presented. In this journal, a section of the introduction clearly indicates what the study is all about.

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 [...]

The objective of the mouse micronucleus assay is to evaluate a test article for clastogenic activity in polychromatic erthrocyte stem cells in treated mice.

The aorta is the largest and the main artery in the system. The distribution of the oxygenated blood through the body is one of the main functions of the aorta.

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 [...]

According to the researchers, the relevant mitophagy is essential for maintaining the quantity of mitochondrial in sake yeast in the course of its brewing.