Free Biology Essay Examples & Writing Tips. Page 3

540 samples

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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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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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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Planting Bamboo: The Role of Photosynthesis

Lastly, I think bamboo's photosynthetic exceptionalism is manifested in the fact that light is one of the most important factors of photosynthesis, as it is a source of the necessary radiant energy for biochemical processes.
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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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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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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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Biology of Neuronal Impulses Interaction

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.
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Clinical Testing of Naegleria Fowleri Amoeba

Considering the potential health consequence of the Naegleria Fowleri amoeba, analysis to obtain a fast diagnosis is considered crucial to allow early treatment procedures.
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Memory: Its Functions, Types, and Stages of Storage

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 [...]
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A Statistical Experiment: Junco Birds

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.
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Researching the Basics of Biology

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

The salivary glands contribute to the breakdown of the nutrients in the mouth while the pharynx directs the eats to the esophagus.
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The Memory Formation Process: Key Issues

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.
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Iris Flowers Species and Their Classification

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 [...]
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Viruses: Reproduction and Adaptation

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.
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Microbiological Analysis: Lab Report

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.
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The Role of Microorganisms, Biotechnology

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.
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Biological Taxonomy: Classification of Microorganisms

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.
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Blood Cells and Their Functions

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 [...]
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Biohybrid Actuators: Compare and Contrast

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

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.
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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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Nervous System and Human Capacities

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.
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Understanding the Hand Anatomy

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.
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Competition in Nature Observation

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 [...]
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Anatomy of the Brain: Key Issues

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.
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Concept of Neurotransmitters

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.
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Unique Functional Features of Blindsight

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 [...]
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Sleep Deprivation and Insomnia: Study Sources

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 [...]
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Scientists Convincing Science and Society

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.
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Cell Creation. Basic Characteristic of Life

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.
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Male Reproductive System and Anatomical Structures

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, [...]
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Search for Intelligence: Acquisition of Intelligence

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.
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Fuels Fat: Energy Balance and Metabolism

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 [...]
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Euclea Divinorum: Distribution and Dispersion

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.
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A Brain Anatomy and the Sexual Orientation

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 [...]
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Measuring the Salt Tolerance of Plants

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.
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Perception of Spoken and Written Language

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 [...]
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What Enzymes Are and How Do They Work

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.
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“Molecular Insights Into Classic Examples of Evolution”

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 [...]
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Brain Injury While Football Playing

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.
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Allometric Scaling of Maximal Metabolic Rate in Mammals

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 [...]
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The Size Variation and Zonation

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 [...]
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Cell Counting and Measurement Under Magnification

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 [...]
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Vision, Its Structure and Function in Humans

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.
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Senses and the Endocrine System

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.
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Carbon Monoxide (CO) Poisoning

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 [...]
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The Rhizoremediation for Plant

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.
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Botany: The Beavertail Cactus

Phylum Angiospermae is known to dominate the land because it consists of the highest number of species in the kingdom Plantae. Beavertail cactus exhibits several structural modifications in the leaves, stems, roots and flowers.
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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.
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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.
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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 [...]
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Evidence for Biological Evolution

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 [...]
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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.
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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 [...]
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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 [...]
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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 [...]
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