63 results found

Search Results for: attack

Diaphoresis

What is Diaphoresis? Diaphoresis is referred to excessive or profuse perspiration or sweating which may be due to... Read More

Antigen

Antigen Definition What is an antigen? A simple definition is that an antigen refers to any substance that triggers an... Read More

Predation

In ecology, predation is a mechanism of population control. Thus, when the number of predators is scarce the number of... Read More

Null hypothesis

Null Hypothesis Definition Null hypothesis is defined as “the commonly accepted fact (such as the sky is blue) and... Read More

Thalassophobia

Among many psychological and psychiatric disorders, one is the fear of the ocean and the fear of deep water, which in... Read More

Respiration rate

Respiration Rate Definition Respiration rate is a vital life process that expresses the breathing rate in an organism... Read More

“Mutualism factor” could explain why body does not attack normal flora

When sadness reeks in and you feel as if you are all by yourself, think again. That is because you are never alone. As a... Read More

Plasma membrane

Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More

Humoral immunity

Let’s get to know where one should place humoral immunity, the topic of today’s discussion!! By the end of the article,... Read More

Autoimmunity

Definition noun, plural: autoimmunities A type of immunity wherein the immune response is directed against own body,... Read More

Myocardium

Myocardium Definition What is the myocardium of the heart?  It is the muscular middle layer of the heart that is... Read More

Leukocytosis

What Is Leukocytosis? Leukocytosis is a condition wherein the number of White Blood Cells (WBCs) is increased above the... Read More

Alloimmunity

Definition noun, plural: alloimmunities (immunology) A type of immunity that produces an immune response that is attacking... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Passive and Active Types of Immunity

The previous tutorial investigated the role of white blood cells in phagocytosis. White blood cells are also responsible... Read More

Plant Cell Defense

Hydrogen Peroxide Plants release hydrogen peroxide in response to the presence of a fungal invasion, which attacks by... Read More

Insults

Insult injury or trauma, attack. Origin: L. Insultus =... Read More

Aggression

Aggression a form of behaviour which leads to self-assertion; it may arise from innate drives and/or a response to... Read More

Thrust

thrust 1. A violent push or driving, as with a pointed weapon moved in the direction of its length, or with the hand or... Read More

Coagulation

Definition noun, plural: coagulations (haematology) The process of clot formation (surgery) The disruption of tissue by... Read More

Suberin

Definition noun, plural: suberins (botany) A lipophilic complex polyester biopolymer that occurs in the cell... Read More

Complement

Complement (Science: immunology) a term originally used to refer to the heat labile factor in serum that causes immune... Read More

Secondary succession

We all have come across news where forest lands got destroyed by wildfires. Or sometimes we have read about an entire... Read More

Softwood

Definition noun (botany) The wood (secondary xylem) of a gymnosperm tree Supplement Vascular plants (tracheophytes) are... Read More

Erythroblastosis fetalis

Definition noun A medical condition in the fetus or newborn in which many erythroblasts are released in fetal blood from the... Read More

Residual air

Definition noun The amount of air that remains in the lungs following a maximal expiration. Supplement The residual air that... Read More

Autoimmune disease

Definition noun, plural: autoimmune diseases A type of disease as a result of an immune response of the body against own... Read More

Tree

“The biological diversity is plenty if you look around yourself a little closely; with an eye for life!” … People... Read More

Cutin

Definition noun, plural: cutins (botany) A waxy polymer of hydroxy acids in the cuticle of plants (medicine) An animal... Read More

Epidemic vertigo

Epidemic vertigo --> vestibular neuronitis a paroxysmal attack of severe vertigo, not accompanied by deafness or... Read More

Degenerative disease

Degenerative Disease Definition A degenerative disease is defined as a disease characterized by the worsening condition due... Read More

Sympatric speciation

Speciation is a process of evolution through which two different existing populations evolve and a distinct species form. It... Read More

Biological Viruses

The prime directive of all organisms is to reproduce and survive and this also applies to viruses. Apparently, viruses are... Read More

Biological Cell Defense

Organisms must find a means of defense against antigens such a viruses described on the previous tutorial. If this was not... Read More

Succession

Definition noun, plural: successions, word origin: Latin "successio" 1. (general) (a) The act of following in order or... Read More

Forest

Forest 1. (Science: ecology) An extensive wood; a large tract of land covered with trees; in the united states, a wood of... Read More

Thanatosis – Faking Death To Escape Doom

Thanatosis -- pretending to be dead -- is one of the best strategies that certain wild animals came up with in order to... Read More

Plant

Plant Definition (botany) Any of the eukaryotic organisms of the biological kingdom Plantae, characterized by being... Read More

coronavirus COVID-19

Coronavirus Disease 2019 (COVID-19) Coronavirus Disease 2019 (COVID-19) is a contagious coronavirus disease first detected... Read More

Bacteriophage

Definition noun, plural: bacteriophages A virus capable of infecting a bacterial cell, and may cause lysis to its host... Read More