Introduction Evolution is the route of slight amendment in obtained features over a big variety of time. Different ecological variables like temperature, environment, accessibility of assets, and so on assumed a top-notch component in evolution. At the factor whilst an organism is predicted to be a chunk of a specialty, and whilst it couldn`t do as such with its present-day frame plan structures, evolution was started. Human evolution is the cycle by which humans started to foster on Earth from now-wiped-out primates. Zoologically seen, humans are Homo sapiens, a culture-bearing upstanding taking walks species that want to stay ... Read More

Introduction The human ear is a complex organ with the ability to hear sounds of different frequencies. The human ear can detect sounds between 20 Hz and 20, 000 Hz (20 kHz), which corresponds to the range of sounds audible to the human ear. This frequency range is divided into smaller ranges called tones. The human ear can also detect differences in the loudness of sound, known as its amplitude. Structure of Ear Three sections make up the human ear− External ear Middle ear Internal ear External Ear Auricle (Pinna) When we look at our ears, we ... Read More

Introduction The disease is a broad concept of an illness that some organisms have. Injury is another broad concept of an injury that a human can have. Humans can get diseases or are susceptible to them, and most humans can get injured or sustain injuries. What is a Disease? A disease is a state of abnormal health where the structure and function of an organism are impaired due to infection, genetic defect, or environmental influences. Diseases may affect people physically, mentally, or both. The World Health Organization definition of disease is "Any deviation from or interruption of the normal ... Read More

Introduction People's digestive system is made up of their teeth and tongue as well as the oesophagus, stomach, and small intestine (colon). There are four major organs involved in food digestion and absorption. Food travels through all these organs before it is expelled from the body as faeces via the large and small intestine (poop). Parts of the Human Digestive System To understand how your digestive system works, it helps to know what each part does− Mouth This organ receives food from the outside world through eating and drinking. Chewing breaks down large pieces of food into smaller ones ... Read More

Introduction Blood travels through the body's arteries, veins, and nerves. Throughout your body, it is responsible for transporting oxygen, nutrients, and waste products. Circulatory system components include the heart, arteries, veins, and blood itself. Images Coming soon Features of Circulatory System The circulatory system−the system of blood vessels that transport blood throughout the body−is a network of vessels that begins in the heart and ends in blood capillaries. It is a closed-loop system, which means that it has no opening to the outside environment, so all of the materials it transports are contained within it. The circulatory system consists ... Read More

Immunology is the branch of science that deals with the defence of the body against diseases. The immune system is efficient in protecting the body from foreign substances that disturb the normal functioning of the body. These substances against which an immune response is generated are known as antigens. Antigens include pathogens such as bacteria, fungi, protozoa, and viruses, and also simple molecules such as proteins and polysaccharides. The antigens trigger an immune response upon binding to receptors known as antibodies, and a cascade of reactions is set into motion, ultimately leading to the elimination of the antigen. This reaction ... Read More

Since the accidental discovery of penicillin by Alexander Fleming in 1929, there have been several kinds of antibiotics available in the market, effective against a wide variety of bacterial pathogens. These antibiotics have different modes of action, affecting either cell wall synthesis, protein synthesis or nucleic acid synthesis. Although considered magic bullets at one point in time, many of the commonly used antibiotics are now ineffective against certain pathogens. This is due to the development of antibiotic resistance among such pathogens, owing to the indiscriminate usage of antibiotics across different settings. This article attempts to explore the nature of antibiotics, ... Read More

The animal kingdom is represented by some of the most well-developed and complex species. Animals are multicellular heterotrophic organisms that develop from embryonic layers. Some 8.7 million species of animals are estimated to exist! Of these, scientists have successfully identified and classified about 2 million species. Considering the vast diversity and huge numbers of animals, it is better to classify them based on certain shared characteristics. Broadly, the animals are classified as invertebrates and vertebrates. These groups are further classified into different phyla, depending on similarities in certain characteristics such as the body symmetry, level of cell organisation, number ... Read More

The coronary arteries supply oxygen-rich blood to the heart, hence it is imperative to ensure their normal functioning. However, sometimes, the coronary artery(s) may get blocked due to the buildup of fat and other substances like calcium, waste materials, and fibrin on the inner surfaces of the blood vessel, causing the restricted flow of oxygenated blood to the heart. This is the main cause behind a group of heart diseases, known as coronary heart diseases. Angina is a condition that is indicative of underlying coronary heart disease and its occurrence is quite common globally, with more than ten million ... Read More

Anemia is a common disease, affecting more than 600 million people globally, with more than 100, 000 cases per year in India alone. It is a condition that results in the decreased oxygen-carrying capacity of red blood cells which may be due to decreased amount of red blood cells and/or decreased levels of haemoglobin in the blood. Anemia may be a result of varied causes. In fact, there are about 400 different types of Anemia! Most commonly, however, Anemia is a result of decreased iron levels in the blood, although other cases of Anemia due to vitamin B12 deficiency and ... Read More