Free Biology Essay Examples & Writing Tips. Page 4

741 samples

Parasite Toxicity: Parasite Evolution and Host Adaptation

The most devastating effects of a parasite to the host are related to the toxicity of the parasite. The phenomenon of natural selection leads to the molecular evolution and ultimately changes the chemical and biological [...]
  • Pages: 8
  • Words: 2153

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 [...]
  • Pages: 4
  • Words: 1095

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 [...]
  • Pages: 3
  • Words: 923

Biology Experiment: Hormone and Its Effect

It is emphasized by Erickson and Tadaaki, that avocados do not ripen while attached to the branches, and ethylene increases the speed of ripening. This will be tested by placing avocados under the test bell [...]
  • Pages: 2
  • Words: 556

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 [...]
  • Pages: 5
  • Words: 1641

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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  • Words: 179

Forensic Analysis of DNA and Biological Material

This was the first stage when carrying out the DNA test on a biological material. Notably, the forensic analyst was not allowed to touch the collection pad of the swab as a precaution measure.
  • Pages: 7
  • Words: 1919

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.
  • Pages: 3
  • Words: 828

Co-Evolution: Angiosperms and Pollinating Animals

The birds need nectar from the flowers, the plants that produce nectar consequently only do so to attract these birds and insects, for the process of drawing nectar from these plants to be possible, the [...]
  • Pages: 2
  • Words: 601

Arabidopsis as a Model Organism

Model organisms can be described as organisms that are capable of being used in laboratories studies to conduct certain research or experiments."Arabidopsis thaliana is a small flowering plant that belongs to genus Arabidopsis, a member [...]
  • Pages: 3
  • Words: 871

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.
  • Pages: 6
  • Words: 1903

Staining as a Way to Identify Microorganisms

This procedure is applicable in the study of micro-organisms or the identification of the sample is unknown. Firstly, the gram stain technique is used to distinguish gram-positive and gram-negative bacteria, and the acid-fast technique is [...]
  • Pages: 3
  • Words: 572

Analysis of the Brine Shrimp

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 [...]
  • Pages: 3
  • Words: 811

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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  • Words: 568

Staining Techniques: The Endospore Test

The next step included a smear by use of iodine for a minute and the stain was washed with water. A counter stain was added on the smear and left for a minute.
  • Pages: 4
  • Words: 1151

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.
  • Pages: 2
  • Words: 534

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.
  • Pages: 2
  • Words: 591

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 [...]
  • Pages: 2
  • Words: 570

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 [...]
  • Pages: 2
  • Words: 563

Structure and Evolution of Plants

The brown color they have is derived from the presence of brownish carotenoids they have in their cell chloroplasts. Phototropism has been defined as the tendency of plants and some fungi to grow in a [...]
  • Pages: 3
  • Words: 1126

Biological Insect Control: Augmentation

However, I need to clarify that the control is only due to the natural enemy and not the progeny as no reproduction of the natural enemy is expected.
  • Pages: 12
  • Words: 1260

Inhibitory Influence of Salt on Grass Growth

Prediction: It was predicted that if salinity was increased in certain regions of the growth medium, then growth rate in such regions was likely to be low, and vice versa.
  • Pages: 2
  • Words: 508

Lipids: Fatty Acids and Glycerols

The membrane, made up of lipids, facilitates the fluid movement and transportation of the vital elements of the cell. A lack of these vitamins in the body leads to various diseases and conditions.
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  • Words: 916

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.
  • Pages: 4
  • Words: 1126

Developmental Biology: DNA and MicroRNA

This is augmented by the strengthening of patterns and the increase in the number of lateral cells that are crucial for the process to be successful.
  • Pages: 4
  • Words: 1179

Deoxyribonucleic Acid: Review

The goals of this experiment are: to enable us to become well acquainted with the physical characteristics of DNA by separating it from living tissue, and the use of each stage in the isolation process [...]
  • Pages: 6
  • Words: 1666

New Generation of Microbe Hunters

The greatest fear of the doctors was the fear that the same thing could happen in their area and they would not be able to help the patients since the strain of the bacteria had [...]
  • Pages: 2
  • Words: 605

Bio-Refinery Processes and Product

In order to understand the potential of the spoiled dates in energy production, it is necessary to review the types of date seeds to determine their chemical composition.
  • Pages: 2
  • Words: 603

Identifying Lyme Disease Host Species

This clearly shows that the reservoir potential of mice is high and hence an assertion that mice are the major hosts of B.burgdorferi and immature ticks.
  • Pages: 2
  • Words: 586

Cell Theory, Functions, Discoveries

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 [...]
  • Pages: 2
  • Words: 742

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.
  • Pages: 6
  • Words: 1704

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.
  • Pages: 8
  • Words: 2269

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 [...]
  • Pages: 6
  • Words: 1774

Extraction of Chlorophyll A

The objective of this lab was to extract and measure the quantity of chlorophyll-a present in phytoplankton and use it to estimate the biomass of phytoplankton.
  • Pages: 3
  • Words: 943

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 [...]
  • Pages: 2
  • Words: 564

“What’s the Fuss about Stem Cells?”

The primary goal of this essay is to emphasize the importance of the research of the stem cells, provide a precise definition, and explain their functions in the body.
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  • Words: 581

Principles of Nervous System in Animals

The procession and interpretation of the sensory organs is then effected by the nervous system to facilitate an understanding and interpretation of the surrounding. Cephalization consists of the actual concentration and accumulation of the functions [...]
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  • Words: 873

Biocompatibility: Cell Adhesion

Actin filaments play a role in cell shape, motility and dynamics of the cell. Actin filaments are proteins, and have a function in mobility of the cell and its organelles.
  • Pages: 5
  • Words: 1404

Aspects of Mass Spectrophotometer

The purpose of the experiment was to investigate peptides' behaviour and the manner in which they can be utilized to identify a protein by means of electrospray ionization on an electrospray QTOF mass spectrometer.
  • Pages: 4
  • Words: 687

Fungi and Plants’ Role in Survival of Other Organisms

First, the relationship between plants and fungi shows that plants depend more on fungi than fungi depend on them. Considering that more than 90% of all plant species on earth cannot live without minerals and [...]
  • Pages: 4
  • Words: 991

Origin and Evolution of Segmentation

In the article, "Origin and Evolution of Segmentation", the first hypothesis supports the independent segmentation in annelids, arthropods, and chordates. The first hypothesis predicts negligible similarities in the segmentation patterns of arthropods, chordates, and annelids.
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  • Words: 562

Bioscience. The Allopatric Phase of Speciation

The authors studied disparities in physical attributes and the vocalization of Geospiza difficilis and used the dissimilarities to figure out the course of differentiation in allopatry as the initial phase of speciation.
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  • Words: 817

The Characteristics and Importance of Chickpeas

This demonstrates the popularity of chickpea and its application in various areas of the economy. The popularity of chickpea has grown significantly, and this has led to its demand in different parts of the world.
  • Pages: 13
  • Words: 3665

The Impact of Salts on Grass Growth

Therefore, the length of the grass is expected to be less than that of the control experiment. This experiment would manage to approve that salt influences the growth of grass.
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  • Words: 569

Recovery Plans in Australia

The key stakeholders in the recovery plan for the GSM include the Department of the Environment, Water, Heritage, and the Arts.
  • Pages: 3
  • Words: 827

Nanomaterials for Bone Repair and Regeneration

The tissue should substitute the role of the bone by complementing the automated characteristics of the material to the functions of the original bone and including the ability to transfer mechanical signals, which can control [...]
  • Pages: 13
  • Words: 3613

The Analysis of the Seed Removal Experiment

Given this, a study carried out with an objective of, first, to determine the impact of seed predation on seed environment, and second, to determine the same on the seed sizes were carried out.
  • Pages: 7
  • Words: 2154

Cell Energy Metabolism Controls

By definition, photosynthesis is a process whereby light energy is converted to chemical energy in the presence of CO2 and water.
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  • Words: 671

Recent Advances in Artificial Photosynthesis

Specifically, scientists strive to use the known and change them into "functional, efficient, synthetic systems that will tap the endless supply of energy coming from the sun".[1] Researchers believe that artificial photosynthesis can work on [...]
  • Pages: 5
  • Words: 1392

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 […]
  • Pages: 2
  • Words: 590

The Science Behind Bacterial Aging

A bacterium is one of the organisms that undergo asymmetric division of cells hence does not undergo aging. In this bacterium, it is evident that the DNA process stopped because the stalk cell turned out [...]
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  • Words: 592

Establishing Organ Systems Roles

Endocrine System Number Name of the Organ or Part Hormone(s) Produced or Secreted 1 Parathyroid gland Parathyroid hormone (Gould, 2005). 2 Thyroid gland Thyroxine and calcitonin. 3 Trachea No hormone is secreted. It is a supporting structure. 4 Pineal gland Secretes melatonin. 5 Hypothalamus Produces ADH and oxytocin, regulatory hormones for the anterior pituitary. Produces […]
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  • Words: 582

Understanding Emerging Diseases

Some of the diseases are spread when the agents are passed on from animals to humans through a process referred to as zoonosis.
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Will Biologics be the Main Drugs of the Future?

In generally, the uniqueness of biotechnology drugs or biologics as they are commonly referred to has to do with the fact that biologics help to improve the state of a patient's body through a natural [...]
  • Pages: 18
  • Words: 4960

Vibrio Cholerae: Death by Diarrhoea

Although it is widely believed that Vibrio cholerae is a human pathogen, implying that human beings serve as the natural host, it has the capacity to persist and survive in the absence of a human [...]
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  • Words: 705

Bacterial Diseases of Marine Organisms

The striped dolphin is a highly susceptible host of the bacteria and poses and the most potent reservoir and source of transmission of the infectious agent.
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  • Words: 1211

Basal Cell Carcinoma – Symptoms and Causes

The nose also tends to be among the most vulnerable parts, and according to a recent study, "40% of BCC that was diagnosed on the head and neck were adjacent to the nose".
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  • Words: 1385

Skin Graft in Tissue Engineering

In this case, tissue engineering seeks to address the problem of organ and tissue failure through the provision of a better and more effective technique such as natural implants, organ mimics that are functional from [...]
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  • Words: 1174

Self-Healing Materials and Their Using

The healing process of this material is almost similar to that of the aforementioned self-healing concrete except for the fact that the polymer uses the Grubbs' catalyst during the healing process while the self-healing concrete [...]
  • Pages: 4
  • Words: 1111