Free Biology Essay Examples & Writing Tips

Don’t know what to write about in your essay on biology? Looking for good biology essay examples for inspiration? This article has all you need!

A biology essay is a type of academic paper that focuses on a particular topic of biology. It can discuss animal life, cycles in biology, or a botanic subject. You will need to demonstrate your critical thinking skills and provide relevant evidence to support your perspective.

On this page, you will find examples of biology essays. You will also find here tips and topics prepared by our experts . They can assist you in nailing your short or extended essay.

Areas of Research for Biology Essays

If you’ve been assigned to write a biology essay, you probably know which area of research you have to choose. However, it might be beneficial to explore other available scopes. It’s useful for both interdisciplinary study and the cases when you are free to pick your area of research. In this section, let’s figure out what you can study in biology.

Here are biological areas of research you should be familiar with:

  • Cancer Biology studies this type of disease to prevent, detect, diagnose and cure it. The ultimate goal of such biologists is to eliminate cancer.
  • Cell Biology is a branch that studies the structure, function, and behavior of cells. Here, biologists study healthy and sick cells to produce vaccines, medication, etc.
  • Biochemistry is an application of chemistry to the study of biological processes on cell and molecular levels. It is a cross-discipline between chemistry and biology. The focus is on the chemical processes of living organisms.
  • Computation Biology is a study of biological data that develops algorithms and models to understand biological systems. Here, scientists either work for institutions or research for private enterprises.
  • Genetics is an area that focuses on the study of genes and genetic variations for health benefits. It looks at the way DNA affects certain diseases.
  • Human Disease is an area within which scientists study different diseases. The field covers cancer, developmental disorders, disease genes, etc.
  • Immunology is a branch of biology that focuses on immunity. Immunologists look at the way the body responds to viruses as a way to protect the organism.
  • Microbiology studies all living organisms that are too small for our eye to see. It includes bacteria, viruses, fungi, and other microorganisms.
  • Neurobiology is the study of the nervous system. Biologists examine the way the brain works and look into brain illnesses.
  • Stem Cell and Developmental Biology seeks to examine how the processes behind stem cell’s ability transform cells. The biologists in this area use the power of stem cells to model human illnesses.

Essay on Biology: Writing Tips

Want to know how to start a biology essay? Wondering about the best way to write your essay on biology? Then check out the following tips.

When you’re writing about biology, pay attention to the following features:

  • Introduction . Just as in any other form of academic writing, the first section of your paper introduces the subject. Here, explain why your ideas are relevant to biology as a science.
  • Thesis Statement. The final one or two sentences of the first paragraph should include your original hypothesis and experiment. You will be proving them in the main body. You do not have to include the results as the reader will encounter them later. If you’re struggling with this part, try our thesis generator .
  • Main Body. In this part, write about all the experiments in detail. Often, teachers require to include visual aid to prove your point. For Zoology, Anatomy, Botany, it is pretty easy to find some photos and illustrations.
  • Conclusion. Here, restate your thesis. Reemphasize the most critical aspects described in the main body. You can do it by using our summarizing tool . The goal of this last paragraph is to leave an everlasting impression on the reader.

Thank you for reading our article. We hope you found it helpful. Share it with your class peers who also study biology. Additionally, have a look at the biological essay examples below.

741 Best Essay Examples on Biology

Grass and its importance, the benefits of animals to humans essay.

  • Words: 1166

The Effect of Temperature on Amylase Activity

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Ubiquity of Microorganisms

  • Words: 2210

Bronfenbrenner’s Bioecological System Theory

  • Words: 1827

Anaerobic Respiration and Its Applications

  • Words: 1274

Effects of Vinegar on the Germination Rate of Mung Beans Seeds

  • Words: 1750

Biology of Grasses: Description and Importance

Strawberries history.

  • Words: 1484

Browning Reactions Explained

Biology: analysis of egg experiment, mitosis and meiosis in onion root tip.

  • Words: 1691

Seed Germination Experiment: Results and Discussion

Mung seed germination patterns under varying ph values, similarities and differences of photosynthesis and cellular respiration, botany and taxonomy of the onion.

  • Words: 2414

Lemon, Its Origin and Production

  • Words: 1115

Dark or Light Skin: Advantages and Disadvantages

Eukaryotic and prokaryotic cells: key differences, membrane hands-on laboratory report.

  • Words: 1176

Osmosis Through a Potato Slice Dipped in Solutions of Varying Concentrations

  • Words: 1075

Corn Plant’s Developmental Stages

Mitosis in onion root and whitefish blastula, non-trophic interaction in marine species, a brief discussion of animal and plant cells, pets and people, transpiration process in plants, basic and applied biology: key differences, the insect effect on human life, responsible house plant keeping.

  • Words: 2262

Archaea and Bacteria Prokaryotes Dichotomous Keys

Characteristics of adult development.

  • Words: 1311

Cell Organelles, Their Functions, and Disease

  • Words: 1195

A Light Microscope: Function and Usage

Understanding the effects of quantity of light on plants growth.

  • Words: 1089

The Function and Structures of the Human Heart

The genus rosa’s adaptation to the environment.

  • Words: 1144

The Anatomy and Physiology of the Nervous System of a Rat

  • Words: 1612

Description of Mitosis and Meiosis

Marine life in united arab emirates.

  • Words: 1474

A Lab Report for Microbiology Class

Nanobiotechnology, its advantages and disadvantages, soil impact on the growth of plants.

  • Words: 1227

Biology Lab Report: Biodiversity Study of Lichens

Dugesia, a planarian with its peculiar characteristics.

  • Words: 3207

Consequences of Orange Juice on the Germination of Mung Bean Seeds

Biology: photosynthesis and respiration, the digestive system in the human body, the effect of habitat disturbance on invertebrate abundance and diversity.

  • Words: 1282

Is Earthworm Beneficial or Harmful to Humans?

The c-fern plant laboratory experiment.

  • Words: 1101

What Enzymes Are and How Do They Work

A study of the brine shrimps and their natural environment.

  • Words: 1937

Vitamin A: Description and Usage

Biology. cell analogy – nucleus + nucleolus, importance of the brain in human body, the characteristics and importance of nervous system.

  • Words: 1705

Seed Germination and Osmosis

  • Words: 1127

Microbial Groups and Golden Age of Microbiology

The process of a prenatal child’s development, bird dna extraction: sex determination of gallus gallus.

  • Words: 1109

Cell Membrane Permeability

Earth atmospheric evolution.

  • Words: 1719

The Human Cloning Debates

  • Words: 1197

Ubiquity of Bacteria: Laboratory Activity

  • Words: 1496

Forensic Procedures: Hairs and Fibres

  • Words: 2067

Rabbit Muscular System Dissection Report

Digestion, absorption and assembly of proteins.

  • Words: 1456

How SCOBY Changes Its Environment: Lab Experiment

  • Words: 1214

The Histopathology Laboratory: Special Stains

  • Words: 2077

Psychophysics: Definition & Fundamentals

  • Words: 1606

“The Egg and the Sperm” by Emily Martin Critique

  • Words: 2577

Plant Growth and Development With Music

Gekkonidae: biological characteristics.

  • Words: 1121

Vaquita – Endangered Species

  • Words: 1367

16S and 18S Ribonucleic Acids: The Key Differences

Memory: its functions, types, and stages of storage, the pomegranate or “punica granatum l.”.

  • Words: 1184

Unknown Bacteria Under Microbiology Lab Tests

  • Words: 1164

Life in the Bottom of the Ocean and Its Protection

  • Words: 1529

The Physical Self Concept Analysis

Differences of domesticated and wild animals and plants, venus flytraps and arthropods: plant-animal interactions.

  • Words: 2088

Cell Culture and Biomedical Applications

  • Words: 1485

Essentials of Biodiversity

  • Words: 1846

Energy Balance and Expenditure

The role of the olive in human history and lives.

  • Words: 1653

Epithelial Tissue: Structure and Functions

Computational biology as an essential research area, microbial growth and effect of ph on it.

  • Words: 1330

Biological Taxonomy: Classification of Microorganisms

Yeast and the fermentation process, chlamydia sexually transmitted disease, human reproductive biology: organs, structure, functions.

  • Words: 2909

Vision, Its Structure and Function in Humans

How the skeletal muscles derive the energy for contraction.

  • Words: 1913

Photosynthesis as a Biological Process

Viruses: alive or not from scientific perspective, different ecosystems and living things, the brain: structure and functions, domesticated, cultivated, and wild species, the human family tree development, the thermoregulation is and its importance, living things: what do they have in common, substrate concentration and rate of enzyme reactions.

  • Words: 1730

Co-Evolution: Angiosperms and Pollinating Animals

How the human eye works analogous to a camera, cell theory, functions, discoveries, aspects of biology as a subject, osmosis transport across the cell membranes, cloning of plants at the botanic garden, history of biotechnology.

  • Words: 1908

Vertical Stratification

Whether or not human cloning should be allowed.

  • Words: 1350

The Nature of DNA Structure Discovery

Functions of eukaryotic cell organelles and their importance, plasmodium falciparum among eukaryotic microbes, lucid dreaming: impact on sleep disruption.

  • Words: 1927

Protein Sequence Determination

Adenosine triphosphate: role in muscular system.

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Biology KCSE Essay Questions and Answers Paper 2; Over 1,000

You are currently viewing Biology KCSE Essay Questions and Answers Paper 2; Over 1,000

  • Post published: October 13, 2024
  • Post category: Teachers' Resources

KCSE BIOLOGY PAPPER TWO 231/2 -ESSAYS FROM 1995 -2023

  a). Describe how insect pollinated flowers are adapted to pollination ( KCSE1995)

  • Progesterone
  • Luteinizinghormone
  • Describe how excretion takes place in: ( KCSE1995)
  • MammalianKidneys
  • Greenplants
  • a).Explainhowthemammalianskinisadaptedtoperformitsfunctions (20marks; KCSE 1996)

b). Describe how new plants arise by asexual reproduction (20 marks; KCSE 1996)

  • a). What is parasitism? (KCSE1997)

b). Describe how the tapeworm is adapted to a parasitic mode of life (KCSE 1997)

  • a). What is meant by the term digestion? (KCSE1997 )

b). Describe how the mammalian small intestine is adapted to its function (KCSE 1997)

  • Discuss the various evidences, which show that evolution has taken place (20 marks; KCSE 1998)
  • Explain how the mammalian intestines are adapted to perform their function (20 marks; KCSE 1998)
  • a). Describethe:
  • Process of inhalation in mammals ( KCSE 1999)
  • Mechanisms of opening and closing of stomata in plants (KCSE1999)

b). Explain how the various activities of man have caused pollution of air (20 marks; KCSE 1999)

  • a). Describe the role of hormones in the human menstrual cycle (20 marks; KCSE2000)

b). How are leaves of mesophytes suited to their functions (20 marks; KCSE 2000)

  • a). State the functions of the following parts of the mammalian ear; (KCSE2001)
  • Tympanicmembrane
  • Eustachiantube
  • Earossicles

b). Describe how semicircular canals perform their functions (KCSE 2001 )

  • a). Describe the process of fertilization in a flowering plant ( KCSE2001)

b). State the change that take place in a flower after fertilization ( KCSE 2001)

  • a). Describe the role of hormones in the growth and development of plants (20 marks; KCSE 2002)
  • a). Name three types of skeletons found in multicellular animals ( KCSE2002)

b). Describe how the cervical, lumbar and sacral vertebrae are suited to their functions

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(KCSE 2002)

  • a). Describe the functions of the various parts of the human eye (20 marks; KCSE2003)

                                                                                                                                         1 | P a ge

(b). Describe how fruits and seeds are suited to their modes of dispersal (20 marks; KCSE 2003)

  • a). How is the mammalian skin adapted to its functions? (20 marks; KCSE2004)

b). Explain how a biotic factors affect plants (20 marks; KCSE 2004)

  • a). Describe how gaseous exchange takes place in terrestrial plants (20 marks; KCSE2005)

b). How is the human eye adapted to its function? (20 marks; KCSE 2005)

  • a). Describe how human kidney functions (20 marks; KCSE2006)

b).Describehowwatermovesfromthesoiltotheleavesinatree (20marks; KCSE2006)

  • a). Describe the structure and functions of the various parts of the human ear (20 marks; KCSE 2007 )

b). Describe causes and methods of controlling water pollution (20 marks; KCSE 2007 )

  • Describe the nitrogen cycle (20 marks; KCSE2008)
  • a). State four characteristics of gaseous exchangesurfaces

b). Describe the mechanism of gaseous exchange in a mammal (16 marks; KCSE 2008)

  • a). How are flowers adapted to wind and insect pollination? (20 marks; KCSE2009 )

b). Describe the role of the liver in homeostasis in the human body (20 marks; KCSE2009)

  • a). Describe the process of fertilization in flowering plants (20 marks; KCSE2010)

b). Describe how a finned fish such as tilapia moves in water (20 marks; KCSE 2010)

  • a). Describe the exoskeleton and its function in insects (13 marks; KCSE2011)

b). Describe how accommodation in the human eye is brought about when focusing on a near object (7 marks; KCSE 2011)

  • Using a relevant example in each case, describe simple and conditional reflex action (20 marks; KCSE2012)
  • a).Usingarelevantexample,describehowanallergicreactionoccursinahumanbeing

(10 marks; KCSE 2012)

b).Describehowenvironmentalfactorsincreasetherateoftranspirationinterrestrialplants

  • a). Describe the process of blood clotting in human beings (10 marks; KCSE2013 )

b).Howarerespiratorysurfacesinmammalsadaptedtotheirfunctions? (10marks; KCSE 2013)

  • Describe the role of the following organs in excretion andhomeostasis
  • The liver (10 marks; KCSE2013)
  • The skin during hot environmental conditions (10 marks; KCSE2013 )
  • a). Explain how each of the following factors affect the rate ofphotosynthesis:
  • Temperature (2 marks; KCSE2014)
  • Chlorophyll concentration (2 marks; KCSE2014 )

b). Describe the process of carbohydrate digestion in human beings (16 marks; KCSE2014)

  • a). How does excretion take place in plants (4 marks; KCSE2014)

b). Describe the role of the human skin in homeostasis (16 marks; KCSE 2014)

  • a).Explainthevariouswaysinwhichseedsandfruitsareadaptedtodispersal (20marks; KCSE 2015)

b). How is a mammalian heart structurally adapted to its function? (20 marks; KCSE2015)

                                                                                                                                         2 | P a ge

  • (a).Usingarelevantexampleineachcase,describesimpleandconditionalreflexaction

(20 marks; KCSE 2016)

b). Describe how the mammalian heart is structurally adapted to its function (20 marks; KCSE 2016)

  • a ) Explain the importance of protecting the forest ecosystem with reference to the following (20 marks; KCSE 2017 )
  • a) Climate change
  • b) Biodiversity

c)Biotechnology

d)Water conservation

  • e) Pollution
  • b) Describe how a mammalian eye is structurally adapted to its functions (20 marks)
  • a) Describe the mode reproduction in a named fungus (5 marks)
  • b) Describe the roles of hormones in the menstrual cycle (15 marks; KCSE 2018 )
  • a) Giving examples, describe the following among organisms (20marks; KCSE 2019 )
  • Predator-prey relationship
  • b) Explain the effect of increased physical activity on the following organ system (20 marks)
  • a)(i)Explain the role of the liver in blood regulation (3 marks ; KCSE 2020)
  • Describe how a mammalian heart is adapted to its functions (17 marks)
  • b) (i) Explain how the presence of chloroplast in guard cell affect the opening of the stomata (5marks)

(ii) Describe how various environmental factors affect the rate of photosynthesis (15marks)

  • a) (i) Explain the role of placenta during pregnancy(10 marks) ( KCSE 2021)
  • ii) Explain features and mechanisms that hinder self pollination and self fertilization(10 marks)

b)( i) Describe how xylem is structurally adapted to its functions  (5marks)

(ii) Describe the functions of mammalian blood in the human body(15 marks)

  • a i) Describe how plants eliminate waste products(8 marks; KCSE2022 )

ii)Describe the structure and function of mammalian nephron (12marks)

  • b) i. Describe five tropic responses and their survival values (15marks)

ii)Describe how mammalian heartbeat is controlled                (5mks)

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Biology - Free Essay Examples And Topic Ideas

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Biology Explored: the Dynamic Duo of Mitosis and Meiosis

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Biology’s Role: Shaping Lives and our World

Biology's Insight: Medicine, Food, and Human Health Biology is the study of living things. So, if humans want to find out everything that god has created for us, we need to study biology. One of the examples of something that we use every day is medicine. A lot of medicines have plants and a bunch of other living things in the ingredients. And without medicine, most of the human population would probably die of disease. A lot of foods are […]

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Photosynthesis is the process that transforms organisms from light energy into chemical energy. In order for photosynthesis to take place, it needs these three things: Water, carbon dioxide, and sunlight. As humans, in order to live plants, must take in gases. Plants are known as ""autotrophs, which means organisms that can make their own food. The process of photosynthesis was created and developed Jan Ingenhousz, a British physician and scientist. Joseph Priestley was another scientist who contributed to the discovery […]

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Photosynthesis Vs. Cellular Respiration the Major Processess in a Global Balance

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Why is Photosynthesis Important?

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Idea of Photosynthesis by Jan Ingenhousz

To begin, the idea of photosynthesis was created by, according to Encyclopaedia Britannica, ""A Dutch scientist, Jan Ingenhousz. (Ingenhousz 1.) He was born in the Netherlands on December 8, 1730. Ingenhousz, is most known for his discovery of photosynthesis. According, to Encyclopedia Britannica, ""Ingenhousz discovered that light is necessary for photosynthesis, only the green parts of the plant perform photosynthesis, and all living parts of the plant can potentially damage the air."" (Ingenhousz 1.) Photosynthesis occurs in two steps inside […]

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How does migration affect the allele frequency of the dominant allele? A genetic population can be described as the sum of allelic frequencies of all genes that are represented in the population. This implies that for an evolution of a species to take place a change in the gene frequency has to take place. This can be influenced by some factors like the fitness of organisms, fertility or even the viability of the organisms. When the fitness of an organism […]

Sustainability in Artisanal Mining: the Role of Major Stakeholders

The Case of Ghana: An Introduction to Mining. Mining can be traced back in history when its activities were informal and unregulated. Today, the formal mining industry can be said to be a 'child' of an informal mining sector whose contribution to the development of mining cannot be overemphasized. Some countries, like Canada, the United States, Australia, and others, in the course of developing their mining sectors, formalized their artisanal gold mining industry through the provision of services such as […]

Sustainability, Starting with Businesses

Sustainability is the ball to the Earths chain, it is something that we need to help humanity, along with every other creature on this planet, survive and also protect the Earth. Sustainability is where Humans can sustain themselves without harming the planet, or at least have the biggest effect on the planet than Earth herself. There are ways that we, as a whole, can change to help reduce the carbon footprint that we so greatly have increased over the years. […]

Sustainability in Water Supply

The theory of water's origin may be debated, but the versatility of water is recognized as vital to human life. Innumerable theories have been proposed about how water was acquired on the earth's surface over the last 4.6 billion years (Robert, "The Origin of Water on Earth," 2001). The significance of water extends beyond everyday survival, serving as an environmental lifeline for numerous species and habitats. Water provides humans with the opportunity to maintain balanced health, support agricultural labor, and […]

The Sustainability of Bottled Water

Water is a valuable resource that all living things including human beings require in order to survive. It is believed that the realities of the environment will soon hit us to an extent of making us change the behavior regarding the costly use of resources (Earle, 2009). The changes are most likely going to affect the manner in which we use water and hence cause alterations both in quantity and water usage. Privatization of water resources as well as selling […]

What is Sustainability in Business?

The first aspect business looks when thinking about sustainability is the operational aspect and saving cost as it is easy to measure.Most of the resource we are using are non-renewable resources,from our energy need to the consumption of oil.But all these resources are bound to get over in the future.There is a term called peak oil,after which production of oil reduces due to reduce reserves.There is already an alert for helium gas which is used in many areas like filling […]

Factors Influencing Sustainability of Electronic Manufacturing Company in Laguna

The 5S program is a technique originated in Japan and was introduced by Takashi Osada in 1980. 5S is consist of five phases from Japanese words: Seiri (sort), Seiton (set in order), Seiso (shine), Seiketso (standardize) and Shitsuke (sustain). 5S is a step by step process of housekeeping to achieve a safe, clean and organized environment in the work area involving the employees with a commitment to sincerely implement and practice housekeeping. When the workplace is unorganized and dirty, the […]

Energy Efficiency of Photosynthesis

Photosynthesis is the process in which plants use the energy from the sunlight to make glucose (a type of sugar), which they then use as food. The equation for photosynthesis is: 6CO2 (carbon dioxide) +6H2O (water) -->(Sunlight) C6H12O6 (glucose) +6O2 (oxygen). Plants, algae, and cyanobacteria are photosynthetic organisms. In plants and algae, light is absorbed by chlorophyll—a molecule present in the cytoplasmic organelle called the chloroplast. Chlorophyll has a porphyrin ring with a magnesium cofactor at its center. Plants have […]

Effects of Sweet Cassava Polysaccharide

The study I researched was the ""Effects of sweet cassava polysaccharide extracts on endurance exercise in rats. Sweet cassava is a major carbohydrate in many countries and it contains monosaccharides and polysaccharides. It was found that high-carbohydrate foods could increase muscle glycogen content, which can allow one to exercise for a longer time and not tire as quickly. The aim of the study was to examine the effects of the sweet cassava polysaccharides (SCP) on exercise performance in rats. The […]

Sustainability Community Engagement and Diversity Inclusion Review BA

Introduction: Southern Company is an energy holding company that produces and sells electricity through various southern power subsidiaries. It's headquarters is located in Atlanta, GA and the company has been a part of the Fortune 500 list for 24 years. It's current rank is 126, up 19 spots from its ranking in 2017. The CEO is Thomas A. Fanning and he is in charge of 31,344 employees. Southern Company operates 11 regulated utilities serving an estimated 9 million people in […]

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Writing an Essay About Biology

Biology, a core STEM subject in college, is widely recognized by students for its difficulty, stemming from its vast scope and the intricate details of living organisms and ecosystems. This complexity often leads to struggles, as students grapple with understanding concepts ranging from molecular biology to large-scale ecological interactions. However, there is a solution to these academic challenges: Papersowl, an educational platform, provides essential support for students facing difficulties in biology. Papersowl helps students navigate through the complexities, offering tailored biology homework help that enables them to understand, engage with, and excel in this demanding yet fascinating field of study.

Biology essays require a deep understanding of the natural world and an ability to convey complex biological processes and theories effectively. Here’s a guide to help you craft a comprehensive and insightful essay on a biology topic:

Understanding the Essay Topic

Begin by thoroughly understanding the specific biology topic you're dealing with. Biology encompasses a vast array of subjects, from molecular biology and genetics to ecology and evolution. Identify whether your essay should explore a specific biological process, discuss a theoretical aspect, analyze a biological problem, or evaluate the impact of a biological study.

Conducting In-Depth Research

Research is a critical component of a biology essay. Utilize reputable sources such as academic journals, biology textbooks, and scientific publications. Look for current research findings, experiments, and case studies that align with your topic. Taking detailed notes on relevant biological processes, findings, and theories is essential.

Developing a Clear Thesis Statement

Your thesis statement should succinctly convey the main argument or purpose of your essay. This might be an assertion about a biological principle, the significance of a research finding, or an argument concerning environmental policies. Make sure your thesis is specific, focused, and directly related to the biology topic you are discussing.

Planning the Essay Structure

Organize your essay logically and coherently. Start with an introduction that introduces the topic and presents your thesis statement. In the body, structure your main points into separate paragraphs, each focusing on a specific aspect or argument. Support your points with examples, scientific data, and explanations. Conclude by summarizing your main arguments and restating your thesis in the context of the information presented.

Writing the Essay

Use clear and precise language. Biology can involve complex terminology and concepts, so it's important to explain them clearly. Avoid unnecessary jargon, but when specific terms are required, define them to ensure clarity. Present your arguments logically, backing them with evidence from your research. Be analytical and critical, especially when discussing biological models, theories, or controversies.

Incorporating Scientific Data and Examples

Biology essays often include scientific data, diagrams, and graphs. Ensure that these elements are accurately presented and relevant to your argument. Use real-world examples and case studies to illustrate your points and demonstrate how they apply to your thesis.

Citing Your Sources

Proper citation is crucial in a biology essay, especially when referring to data, theories, or experiments from other researchers. Use an appropriate citation style (such as APA, MLA, or Chicago) and consistently cite all your sources, including figures and diagrams.

Editing and Proofreading

Review your essay for clarity, coherence, and logical flow. Check for accuracy in your biological descriptions and ensure that your analysis is comprehensive. Proofread for grammar, spelling, and formatting errors. Having someone else read your essay can be helpful, as they might catch mistakes or unclear sections you overlooked.

Writing an essay about biology involves understanding complex life sciences concepts and effectively communicating them in a structured and insightful manner. By methodically researching your topic, organizing your essay logically, and presenting your arguments with clarity and precision, you can create a compelling biology essay that showcases your understanding and insights into this diverse and fascinating field.

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Home / Essay Samples / Science / Biology

Biology Essay Examples

The biological process of the cell cycle: the basis of life.

In my cell cycle essay, I aim to provide a comprehensive understanding of the different stages of the cell cycle and their regulation, including the role of key proteins such as cyclins and cyclin-dependent kinases (CDKs). The cell cycle is the process by which cells...

Overview of the Structure and Function of Cell Membrane

This Cell Membrane essay provides an overview of the structure and function of the phospholipid bilayer, embedded proteins, and cholesterol, along with the mechanisms of selective permeability and cell signaling. The cell membrane is a crucial component of every living cell. It separates the internal...

Chlamydia: Causes, Symptoms, Treatment, and Prevention

Chlamydia is a sexually transmitted bacterial infection caused by the bacterium Chlamydia trachomatis. It is one of the most common sexually transmitted infections and can affect both men and women. In this essay the topic of Chlamydia bacterial infection is revealed. Chlamydia is typically transmitted...

Analysis of the Cellural Respiration: the Process of Creating Enegry

Cellular respiration is the process by which cells convert glucose and oxygen into energy in the form of adenosine triphosphate (ATP). This process occurs in all living cells, and it is essential for the survival of all living organisms. The Cellular Respiration essay explores the...

Homeostasis: Deep Analysis of This Process

In this homeostasis essay I will be discussing why homeostasis is essential to normal functioning of human cells, tissues, organs and body systems. Homeostasis is the maintenance and regulation of a constant internal environment of an organism to create and provide the cells and enzymes...

Analysis of Heart Disease: Coronary Artery Disease

In the essay heart diseases we will have a closer look at such a widespread disease as coronory artery disease. It is one of the most common cardiovascular diseases in the United States. Aside from being common, it has resulted in the deaths of over...

Analysis and Observation of the Plant Experiment

The purpose of this plant essay-experiment is to get a greater understanding of all the factors that go into growing and keeping a plant alive. To conduct this experiment, we were given seeds to water and grow. Throughout the span of about eight and a...

The Evolution of the Size of Human Brain

This is a brain essay in which the following quastion is analysed: how has the size of the brain within this century influenced how Homo Sapiens interpret language, technology and culture? This study explores how the evolution of the larger brain is not important to...

Stress-free Living: Practical Tips and Strategies

To start with, this is expository essay about maintaining a stress free life essay. Here will be discussed how stress affect the health of stomach and what action can be done as a prevention/solution.  There are many definitions on what anxiety/stress is, but overall it...

Is It Possible and Ethical to Clone Humans Essay

There are crucial moral arguments against cloning humans, it's been suggested that there might be exceptional cases in which cloning humans might be ethically permissible. In is it possible and ethical to clone humans essay I will try to reveal this topic. One sort of...

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  • Genetic Engineering
  • Biodiversity
  • Photosynthesis
  • Natural Selection
  • Microbiology
  • Cell Membrane
  • Animal Cell
  • Bioengineering
  • Cellular Respiration
  • Human Physiology
  • Microorganisms
  • Gene Mutations
  • Scientific Method
  • Anthropology

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