Biology is the study of living organisms and their interactions with one another and their environments. Essays could explore significant discoveries in biology, discuss the ethical implications of biological research, or delve into the interdisciplinary aspects of biology in addressing complex environmental and health challenges. A substantial compilation of free essay instances related to Biology you can find in Papersowl database. You can use our samples for inspiration to write your own essay, research paper, or just to explore a new topic for yourself.
Apoptosis is an event in which a cell is programmed and specifically sentenced to death. It happens naturally in the body. Apoptosis in greek means to fall off, and that's one way to think about it. It's as if one, or a few chosen cells are falling off a cliff, while the rest keep working. Apoptosis can be likened to suicide, in that only one cell is killed, and it is intentional. Also, it often happens to cells that are […]
The world and our home we call Earth is a young beautiful place, breathtaking views, wonders of the oceans, various life forms, a sure beauty one would say. As each year goes by humans just take that beauty and make it ugly. Cutting down forest after forest, killing thousands upon thousands of animals per year, we humans have sure gone downhill since the industrial revolution particularly, vast amounts of technology allows us to be able to run the Earth dry […]
Imagine being in a situation where your tumor cells were used for countless scientific experiments, without your consent. Safeguards today are in place to prevent such a situation, but in 1951 a woman, Henrietta Lacks, and her family found themselves in that very situation. Rebecca Skloot unveiled Henrietta’s story in a book called The Immortal Life of Henrietta Lacks, that was then made into a movie April of 2017. Henrietta’s story raised questions about ethics, and race. The book shed […]
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Place orderBefore delving into the molecular biology and therapeutic potentials of induced pluripotent stem cells, it is crucial to provide foundational definitions and descriptions. A stem cell commences as an undifferentiated cell that can either undergo self-renewal, whereby it generates daughter cells that remain as stem cells, or mature into a specific cell type via differentiation (Can/Hematol 2008). Specific stem cell types possess unique potencies, or abilities to self-renew. That is to say, one type of stem cell may be capable […]
Every person is born with flaws, whether it be on a small or large scale. If there were a way to fix these imperfections before birth, how would this affect the human race? To some people, it may seem almost foreign and unrealistic to think about a world where a parent can “design” their future child. However, in a few decades, it won't be so strange to hear that people are genetically modifying their children. Bioethicist Ronald Green of Dartmouth […]
Anemia is caused by the destruction of the Red Blood Cells (RBC’s) and is defined as “a decrease in circulating hemoglobin and oxygen-carrying capacity in the blood due to decreased erythrocyte and hemoglobin production, excessive hemolysis, or the loss of blood”. Pernicious Anemia is a deficiency in producing RBC’s due to a lack of Vitamin B-12 and or Vitamin B-9. Our red blood cells consist of hemoglobin, a protein full of iron, which give our blood its color (red). Hemoglobin […]
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Place orderHave you ever wondered how your body maintains a constant internal environment? The answer is homeostasis. The process of homeostasis is one of the most critical parts of staying healthy and under control. It works in many ways throughout the entire body, each system playing a different part. However, sometimes homeostasis does not fulfill its job of maintaining a perfectly stable environment, leading to varying malfunctions inside of the body. The Endocrine system plays a vital role in the body, […]
The respiratory system is the bodies system that introduces gases into the body and releases waste gases through breathing. The main function is to transport air into the lungs, facilitate the diffusion of oxygen into the blood stream, and exhale carbon dioxide from the blood through exhaling. The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs. The mouth, nose, and nasal cavity function is to warm, filter, and […]
The respiratory system is a group of organs and structures that helps us breathe. It is composed of the lungs, airways, muscles, and associated blood vessels. The airways, which transport oxygen-rich air to the lungs and remove carbon dioxide, include the nose and connected air passages (nasal cavities), the mouth, the larynx (or voice box), the trachea (windpipe), tubes (bronchial tubes or bronchi) and branches. Upon entering through the nose or mouth, the air is both warmed and moistened to […]
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Place orderFor Centuries zoos across America have offered entertainment and education to children and adults. Facing mounting criticism from animal rights camps, they do much more than recognized. Zoos offer support in conservation, educate the public on positive and negative impacts society has on the wild, and saving future generations from extinction. With so much support for wildlife, animals are thriving and adapting to their environments thanks to the help of over 65 conservation programs. American zoos and aquariums have set […]
Introduction Homeostasis is where the body is maintained at steady conditions. The method remains vital, and the body needs the situation to work. It keeps adjusting based on all things considered and temperature of the body cells to work in the environment. In the inner environment, together temperature and liquid sum continue changing because of the different components. Liquids could rise or drop relying upon the water admission of a human, therefore liquid levels are active and not fixed in […]
Cells are constantly fighting between life and death. It is believed that once cells go through certain incidences, their death is irreversible. Incidences such as, shrinkage, the breakdown of DNA or mitochondria, condensation of the nucleus, as well as activation of caspases. A new ability to replenished cells was recently discovered; it is called anastasis. Anastasis is a natural cell recovery that rescues cells from the brink of death (Tang, 2018). Its purpose is to save cells that are challenging […]
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Place orderHomeostasis is the relative consistency of the body's internal environment. Maintain stability while adjusting to conditions that are optimal for survival. What this means is if the body isn't in a good level of homeostasis then problems or issues occur within the body. Body conditions that must remain within a stable range include body temperatures, blood pressure, and the concentration of various chemicals within the blood. The main endocrine organ that is associated with diabetes mellitus is the pancreas. The […]
Roughly ninety-four to ninety-eight percent of men and ninety-eight to ninety-nine percent of women have a primary orientation towards heterosexuality. If any likelihood of lowering successful reproduction would be selected against by nature why is homosexuality a thing that exists in the world? One explanation of this would be the kin altruism theory by Edward Osborne Wilson in 1975. This theory would suggest that genes for homosexual orientation could have been evolved if they led homosexuals to invest heavily in […]
There are various bodily functions that are staples for all animal life on earth, whether the organism is advanced or primitive, all need a way to obtain oxygen, dispose of waste, and break down food to create energy. One of the main systems that perform a life-giving function is the respiratory; the respiratory system comes in many varieties and can cater to many different organism's needs. The respiratory system in primitive animals is simple, as many of these animals are […]
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Place orderExecutive Summary Conservation need: At least five endangered sea turtles habitats are in harm along the Gulf of Mexico and the Savanna, Georgia area. Unfortunately, there are approximately five different species of sea turtles have been lost from roughly over 53 percent of the wetlands that they once inhabitant. Performance targets: The state of the art expenditure of over $5.3 million for the next ten years would aid in accomplishing 10 -15 percent of the endangered reptile population goals. While […]
No insect has captured the imagination of man as much as a butterfly. For several hundred years, small children and serious scientists have been catching them with nets, piercing them with pins, and putting them under glass. The largest collection of the Natural History Museum is dedicated to Lepidoptera - butterflies, moths and moths - and has 10 million specimens. Each of these stunning creatures tells its own story about the world around it. Collected thanks to the enthusiasm of […]
Homosexuality has existed in societies around the world for nearly all of recorded history. From indigenous tribes, to the Romans, Greeks, and even early Americans, a degree of fluid sexuality has permeated cultures around the globe. While homosexual behavior did not pose a large problem in society for much of history, cultural and religious shifts began to fixate upon that which did not fit neatly into boxes established by those in power. Thus, throughout the last several centuries, homosexuality has […]
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Place orderGastric cancer is one of the most common cancers in the world (1). In the United States, 22220 new gastric cancer patients are diagnosed each year, of which up to 10990 are expected to die (2). Among the cancer deaths up to the 1980s, gastric cancer ranked second after lung cancer and the incidence decreased in the last decade (3). One reason for this decline was the identification of H.pylori infection and some dietary and environmental risk factors (4). In this […]
Although Henrietta Lacks died 65 years ago, her cells known as the HeLa line, live on, propelling scientific advances around the world. After their discovery, HeLa cells enabled the development of in vitro fertilization, the first clone of a human cell, the development of the polio vaccine, advances in gene mapping, and so much more. However, prior to the publishing of Rebecca Skloot’s The Immortal Life of Henrietta Lacks, few people knew the source of the HeLa cells. Skloot’s book […]
P2X7 also known as “purinoceptor” is a famous gene related protein that is found in humans beings and is encoded and related to the P2RX7 gene family. The root of this gene is related to the family of purinoceptors for ATP. In this research paper, we will start by explaining the functional properties of the P2X7 receptor and will study how overexpressing of P2X7 protein receptor is done in HEK293 cells. Moreover, we will discuss on regulation of Cdc25 proteins […]
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Place orderThe essential oil is extracted from the leaf, areal part, stem, and inflorescence of Artemisia by various methods, for example, hydro-distillation methods (Pandey, A.K. et al. 2014). Essential oil is composed of more than 60 different components. The concentration and the composition of the essential oil of the same species can differ, depending on the geographical origin. Essential oil contains a major component reported in Artemisia species, such as beta-pinene, thujone, 1, 8-Cineole, camphor, caryophyllene, camphene, artemisia ketone, and germacrene […]
The author noted that diosgenin constrains the 3-hydroxy-3-methylglutaryl CoA reductase expression and stimulates apoptosis in human colon tumor cells. Diosgenin is also a potent inhibitor of HCT-116 with growth inhibition and induction of apoptosis [39]. Diosgenin induces apoptosis via the cyclooxygenase-2 and 5-lipoxygenase pathways in HT-29 and HCT-116 [40]. The author described diosgenin's ability to enhance 5-LOX activity; its inhibition by AA-861 notably reduces the apoptosis of colorectal tumor cells. Moreover, colorectal carcinoma cells expressing COX-2 are less sensitive to […]
Alcohol, in moderation, can have positive health benefits, but when it is drunk in excess, it can negatively influence the body. (1) Alcohol can have an altering effect on the liver cell structure. When these cells are permanently changed, it affects the liver's ability to metabolize fat, which can lead to the development of a fatty liver. (2) The brain cells are also influenced when alcohol is introduced into the body. Brain cells are killed with excessive drinking, and it […]
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Place order1. What are the values for Mary's tidal volume (TV) and the alveolar ventilation rate (AVR)? (Remember to consider the dead space of 150ml). Normal alveolar ventilation is 4.0-5.0L. How does Mary's AVR compare with normal volumes? a. Tidal volume= Minute Ventilation Rate divide by respiratory rate (MVR/RR) MVR= 6.1L/min=6100ml?min RR=30bpm TV= 6100/30=203ml b. Alveolar ventilation rate= the difference between Tidal volume and Dead space multiplied by Respiratory rate (TV-DSV)*RR TV= 203ml DSV=150ml RR=30bpm AVR=(203-150)*30=1590ml=1.6L Mary's AVR is in 2.5-3 […]
Abstract Cancer is a vast disease category that requires constant research for a cure. Over the decades, different treatment plans have arisen to try and combat the range of cancer cells. Some treatment has resulted in success, some end in death, and others are still an ongoing battle for the patients. Anti-cancer drugs have many side effects that come with them such as fatigue, inflammation, infection, and necrosis of cancerous cells. Cancer medicine has come a long way and now […]
If one were to observe the bustling world inside our cells, it would rival the most intricate ballet or the busiest of city streets. At the heart of this choreography lies cellular respiration, the metabolic pathway that provides energy to power this cellular world. In a harmonious dance, specific reactants come together and undergo a series of reactions to produce the precious molecule ATP, the cell's primary energy currency. But what exactly are these reactants, and why are they so […]
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Place orderIndividuals who identify as bisexual have been overlooked in investigations for much of the short time dedicated to examining sexual orientation through neuroimaging. Exploring neural responses in subgroups of the population who are not 'monosexual' is critical to studying a topic that involves examining variations in sexual identities across the population. In one study, men who identified as homosexual, heterosexual, and bisexual were exposed to sexually explicit images and videos of men, women, and same-sex couples. This time, a region […]
Cancers such as leukemia and lymphoma are hematologic diseases that affect millions of Americans each year. Specifically, acute myeloid leukemia, which is also known as AML, is considered to be one of the most frequently occurring types of leukemia and is a major cause of mortality in the United States. Acute myeloid leukemia is infamous for being challenging to treat, due to the capability of the cells forming resistance to treatment. Therefore, it is critical to understand the molecular mechanisms […]
Introduction Sexual orientation is one of the animal kingdom's most pronounced gender differences. The Overwhelming majority of people are heterosexual with few exceptions: most males want Females as sexual partners and vice versa. Knowing whether someone has a male or female sexual preference is one of the most reliable behavioural predictors of the biological sex of that individual, perhaps second only to gender identity, i.e. the sense of being male or female. Although heterosexuality is the norm, a small but […]
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