Free Biology Essay Examples & Writing Tips. Page 2

681 samples

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.
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Cells, Tissues, and Major Organs Systems

The report will cover the structure and functions of animal cells and organelles. It will also address the structure and functions of tissues and main organs of the body.
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Spotlight on Cell Differences: Animal and Plant Structures

Animal Cell Number Cell Structure Description and Function 1 Nuclear pore It is a microscopic channel that allows certain materials in and out of the nucleus (Boal & Boal, 2012). 2 Chromatin (DNA) It is made up of DNA and proteins and packages DNA into a smaller volume to fit in the cell. It serves […]
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Osmosis Transport Across the Cell Membranes

It is the difference in concentration of water across a semi-permeable membrane drives the process. The process is facilitated by the disparity in potential of water across the semi-permeable.
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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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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 [...]
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The Brain: Structure and Functions

This paper is going to describe the major structures of the brain and the functions of each. This part of the brain is composed of cerebellum and the pons.
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Biology. Cell Analogy – Nucleus + Nucleolus

The DNA is similar in every cell of the body, but depending on the specific cell type, some genes may be turned on or off - that's why a liver cell is different from a [...]
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Common Biochemical Cycles

Carbon is also an important element for the living organisms; hence the carbon cycle which is a gaseous cycle takes place to recycle the carbon and make it available for the living organisms.
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Cane Toad: Introduction and Threat

The cane toad multiplied rapidly in a short span of time compared to other species in the same habitat. The major reason for introduction of the cane toad was to control the French Cane Beetle [...]
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The Biological Basis of Sleep

The authors suggest that it needs more accurate measurement of sleep and wake pattern by the use of the electrooculogram, the recording of the movement of the eye, EEG and electromyogram, the recording of the [...]
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The Pesticide Problem and Proposed Solution

Dose response The impacts of the mosquito hazard have called for a measure to use a pesticide to control the breeding and the ultimate population of the mosquitoes in the city.
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Non-trophic Interaction in Marine Species

An example of non-trophic relationships between marine species is decorator crabs and sponges. Decorator crabs and sponges' relations are an example of mutually helpful non-trophic interaction mutualism.
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The Function and Structures of the Human Heart

Pulmonary circulation involves the transfer of deoxygenated blood from the heart to the lungs and then the movement of oxygenated blood from the lungs back to the heart. Coronary circulation is responsible for replenishing the [...]
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Responsible House Plant Keeping

As not every necessary chemical can be derived from sunlight and water, especially in the enclosed environment of a plant pot, it is recommended to include particular vegetation mixtures, ensuring the prosperity of the green [...]
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First Reptiles Adaptation: Amniotic Egg Evolution

The amniotic egg evolution is an adaptation that allowed the first reptiles to thrive in a dry land the development occurred over 300 million years ago. The robust shell protects the egg from drying out, [...]
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Forensic Procedures: Hairs and Fibres

The continued cases of robbery, murder and rape have been countered with the adoption of various forensic procedures to bring the crime perpetrators to book. The collection of hairs and fibres is usually the first [...]
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Characteristics of Adult Development

The development entails the changes that are experienced at the various levels of growth from childhood to adulthood. Another influence is the socioeconomic status of an individual.
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Plasmodium Falciparum Among Eukaryotic Microbes

In the human body, metamorphosis occurs, and the microorganism successively passes through the steps of schizonts in the liver, then turns into merozoites and acquires the ability to infect red blood cells.
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Lucid Dreaming: Impact on Sleep Disruption

Since sleep lucidity requires enhanced metacognitive activity, defining the meaning when discussing thinking while awake and asleep is essential, cognition is the capacity and capability to function, in this case, while dreaming, in particular, are [...]
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Protein Sequence Determination

The peptide sequence was determined by subtracting the mass of two peaks that are not adjacent to each other starting from the right side of the provided mass spectrum graph, adjusting for C and N [...]
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Identification of Escherichia Coli Bacteria

Identifying microbes is the process of determining the species or type of a microorganism based on the study of cultural, morphological, biochemical, serological, and pathogenic properties.
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Bacteriophages in Modern Science

The use of bacteriophages does not limit the use of other drugs and does not affect their effectiveness. It is one of the problems of preclinical studies in many animal models and clinical studies in [...]
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Biology of the Invertebrates: Malaria

They have rapid reproductive rates and the ability to switch sexes according to their environment and the contents of the trunk in which they find themselves, in contrast to the malaria parasite.
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Escherichia Coli-Related Articles Review

The goal of the current study was to identify the frequency of Escherichia coli in poultry meat, the sequence of antimicrobial resistance it exhibited, and its molecular mechanism.
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Traps: Artificially Designed or Modified Cells

CAR protein receptors were created on modified red blood cells that attracted the virus and allowed it to enter the cell, but this was then a dead-end strategy for viral replication.
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The Fermentation Process of Olives

That is why the fermentation process is especially necessary to create an edible product from this fruit and it is close to those used for other products, such as sauerkraut. This step is completed to [...]
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Molds vs. Yeasts: What Are the Differences?

Secondly, superficial mycoses affect the topmost layer of the skin and hair, whereas cutaneous mycoses affect deeper layers of the skin, hair, and nails. Systemic mycoses infect vital organs, whereas superficial mycoses can be found [...]
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The Amplification of DNA Samples

The isothermal amplification of nucleic acids represents a simplified process that allows for the quick and efficient accumulation of nucleic acid sequences in an environment of constant temperatures.
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Learning Biology in the Time of Virtual Education

Thus, the paper investigates the ways of learning biology in the age of social media and virtual education. The paper addressed the ways of learning biology in the age of social media and virtual education.
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Biodiversity: Aspects Within the Sphere of Biology

Finally, living objects consist of cells, which are the basic units of their function and structure. The viruses' structure depends on which nucleic acid is included, which denotes that there are DNA and RNA viruses.
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Application of DNA in Criminal Forensics

In phylogenetic studies, the analysis of DNA from fossil remains allows one to determine the taxonomic identity of a species, while in forensics, one can find the connection between traces and the perpetrator or the [...]
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Extracellular Enzyme Production Tests

Microbes produce exoenzymes to metabolize substances in their surroundings, and these microorganisms may be used in biochemistry assays to evaluate the presence and activity of exoenzymes.
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Voltage-Gated K+ Channels: Key Functions

K+ channels are a family of related proteins found in the neurons' plasma membrane and are responsible for controlling the flow of potassium ions in and out of the cell.
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Literature on Invasive Plants in the United Kingdom

This essay entails a literature review to understand the nature, impacts and control of the "big four" invasive plants in the United Kingdom: Japanese knotweed, Himalayan balsam, giant hogweed, and rhododendron. The outline for the [...]
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“The Egg and the Sperm” by Martin: Article Review

By looking into the wording of significant medical and clinical books and analyzing the social ramifications of the language used within the text, the author intends to criticize the usage of metaphors as well as [...]
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Bacteria Classification and Assessment

A Gram stain is a common test to classify bacteria in blood, urine, or the infection site. In other words, the goal of antibiotics is to support the immune system in the treatment process.
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The Genomics of Adaptation in Birds by Campagna & Toews

076 Date of the Article: October 24, 2022 In the article The Genomics of adaptation in birds by Leonardo Campagna and David Toews, the authors consider peculiarities of natural selection and the evolution of birds [...]
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The Human Family Tree Development

Thus, the investigation of the existing lines of descent in a human family tree allows scientists to determine the worth of connection dots and differences and similarities between the ancestors.
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Streptococcus Pyogenes Overview

Streptococcus pyogenes, a beta-hemolytic bacteria, is officially a member of the Streptococcaceae family, which is regarded as the most harmful member of the entire genus due to the vast range of illnesses associated with it.
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Menopause and Associated Anatomical Changes

Menopause is characterized by a reduction in the production of certain hormones, such as estrogen and progesterone, which affect the anatomical structure of organs such as the uterus and ovaries.
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Metabolic Responses to Exercise

Recent discoveries bring up new insights on the processes by which muscles connect with other organs and modulate the positive effects of physical exertion due to the application of molecular approaches to the biology of [...]
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The Human Body as a Site of Active Conflict

The paramount, major conclusion is that the hypothesis that the simulation of pre-industrial conditions associated with nutrition, fasting, and physical activity can stimulate insulin sensitivity and improve metabolism is true.
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Operant and Respondent Conditioning

In respondent conditioning, the stimulus-response dynamic is unidirectional: the US, often not controlled by the organism, elicits a response, but the organism cannot produce a subsequent stimulus since responding does not affect the presentation of [...]
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Yersinia Pestis: Mechanism of Streptomycin Resistance

This experiment makes a significant contribution to the study of the problem of resistance of the bacterium responsible for the occurrence of plague, investing in the development of a more effective method of treatment.
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“Pécis: Sociobiology” by C. Nickerson

The article has the following ideas that explore the essence of sociobiology. Of particular interest is the issue of gender inequality that arises from the field of sociobiology.
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The Nature of DNA Structure Discovery

Thus, scientists should expand the idea about the nature of discovery without relying only on insight or results, acknowledging Franklin as a discoverer of DNA structure. It is time to reconsider the nature of discovery [...]
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Energy Balance and Expenditure

Energy density, which is typically expressed as the number of calories in a gram, is the quantity of energy or calories in a specific weight of food.
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Aspects of Lactic Acid Bacteria in Wine

Virdis et al.argue that they are frequently the result of yeast and microbial metabolism and are changed and generated in wine throughout the fermentation.
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Mitochondria and Power Companies

Energy companies are responsible for the energy production in cities, while mitochondria act as the source of energy in the cell.
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Lucid Dreams Aspects Nature Analysis

Lucid dreams are dreams in which a person realizes that he is dreaming but can be an active participant in the scenes taking place in the subconscious.
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Stuttering and Its Neurobiological Causes

The auditory and motor cortex activity was weakly correlated in PWS during speech reproduction with normal feedback. Signal amplification in the auditory cortex by altering auditory feedback improves speech fluency and synchrony of speech-related activity [...]
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Somatosensory Cortex and Perception of Touch

The somatosensory cortex is the sensory part of the brain that includes all sensations received from the skin and mucous membrane and all sensations received from the hands and joints.
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Streptomycetes Among Prokaryotes Important in Society

Humans interact with streptomycetes in ways that are quite beneficial for the society in terms of pharmaceutics. In particular, streptomycetes are directly utilized in producing over 75% of commercially useful antibiotics and have shown effectiveness [...]
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Anatomy of Neuron and Neuroplasticity

Neuroplasticity, also known as neural plasticity or brain plasticity, is a process in which the brain undergoes adaptive structural and functional changes.
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A Biological Science Innovation Article Analysis

The most intriguing aspect of the article "Research that shines light on how cells recover from threats may lead to new insights into Alzheimer's and ALS" by Brian Andrew Maxwell is that it offers information [...]
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Diversity and Extinction of Cyclura Lewisi

One of the biggest risks to the population of this species is wild animals. The Grand Cayman blue iguana population is gradually expanding and is predicted to continue to rise as a result of continuing [...]
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The Swallowing Process Analysis

Upon showing the image of the desk with the character for "swallowing" on it, the participants were told to complete the swallowing action slowly and comfortably, as they normally would.
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Interesting Aspects of Brain Development

One of the most important brain developments concepts is neuroplasticity, which is the ability of experiences to impact the structure and activity of the brain.
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The Psychological Nature of Memory

Using the numerical representation of the participants' results, the researchers calculated the dependence of the memory and theory of mind in the process of recalling the interlocutors.
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Distribution of the Native Natural Species in Australia

Some of the factors that affect the ratio of the distribution of native plant species within the Australian states include human activities and environmental conditions such as temperature and solar exposure, and duration.
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The Occupational Exposure of Crude Oil Tank Cleaning Workers

The proposed research aims to critically assess the occupational exposure of crude oil tank cleaning workers in the Sultanate of Oman to benzene, toluene, ethylbenzene, and xylene and evaluate the effectiveness of existing control measures.
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How to Identify Ohio Wild Mushrooms

Mushrooms are used in both the chemical and pharmaceutical industries. In summary, fungi are used for many different purposes and applied in other areas.
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The Definition of ETC and Chemiosmosis

FMNH2 poisoning is expected to have a more deleterious effect on the proton gradient because one of the primary chains of electron migration within the membrane is disrupted in this case.
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Nitrobacter’s Features and Position in the Ecosystem

One of the fascinating species of bacteria is Nitrobacter which plays a crucial role in the nutrition of plants. First of all, it is crucial to mention the concept of nitrification and the operations that [...]
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Is Vitamin D the New Super Nutrient?

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 [...]
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Anatomy of the Pituitary Gland

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.
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The Reproductive Attractiveness of Junco Birds

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.
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Triplet Nature of the Genetic Code

One of the assumptions of molecular biology from an evolutionary perspective is that the triplet nature of the genetic code is a traditional form of two-nucleotide coding.
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Microbial Staining Techniques

The generally accepted technique for Gram staining consists of the sequential use of several dyes and the washing agent necessary to fix the color.
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The Beginning of Life: Stages and Participants

Human fertilization is the joining of a human egg and sperm in the ampulla of the fallopian tube, resulting in a zygote cell, or fertilized egg, which begins prenatal development. Syngamy is the joining of [...]
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Evolutionary Biology and Darwin

The lack of knowledge about the laws of heredity, the genetic and ecological structure of species, and the lack of experimental evidence of natural selection served as the basis for the growth of critical attitudes [...]
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Microbiology: Influenza Viruses

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.
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Biowarfare and Bioterrorism: History and Origin

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 [...]
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