180 results found

Search Results for: mean

Mean vector

Definition noun A single cardiac vector that represents the average of all instantaneous vectors at a given... Read More

Law of regression to mean

Law of regression to mean --> Galton's law in a population mating at random, the progeny of a parent with an extreme... Read More

Hypothetical mean strain

Hypothetical mean strain a hypothetical strain that possesses the characteristics of a calculated mean... Read More

Geometric mean diameter

Geometric mean diameter a measure of the central tendency of particle size composition of substrate materials sometimes used... Read More

Gorillas in our Midst – what it means

By Vicki Mozo Summary What's up with the gorilla on a basketball court perception test? If you have tried taking this... Read More

Equilibrium

Equilibrium Definition In Biology Equilibrium refers to the state of balance and stability. In biology, equilibrium is... Read More

Polygenic inheritance

Polygenic inheritance refers to the kind of inheritance in which the trait is produced from the cumulative effects of many... Read More

Density dependent limiting factor

What Is A Density-Dependent Limiting Factor? Density-dependent limiting factors are limiting factors, which, depending on... Read More

Erythrocyte

Erythrocyte Definition Erythrocytes (red blood cells or RBCs) are the myeloid series of specialized cells that play an... Read More

Follicle-stimulating hormone

Follicle Stimulating Hormone Definition In the pituitary gland of the brain, gonadotropic hormones are released.... Read More

Taxonomy

Taxonomy Definition The term "taxonomy" was developed from two Greek words, "taxis," meaning arrangement, and "nomia,"... Read More

First-order kinetics

What is a First-Order Kinetics (First-Order Reaction)? First-order kinetics refers to a reaction wherein the overall rate... Read More

Codominance

Codominance Definition Codominance is a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully... Read More

In situ

When we talk about an experiment, human intervention, a protocol, or its step or any x, y, z call-of-action, it can be... Read More

Homo sapiens sapiens

Homo sapiens What are homo sapiens? Homo sapiens is the species of all the highly developed primates on earth, a category... Read More

Darwinian fitness

Darwinian Fitness Definition Darwinian fitness refers to the measure of an individual organism's or genotype's reproductive... Read More

Hydrophobic

Hydrophobic Definition The fear of mixing or reacting with water under a given set of reaction parameters is often referred... Read More

Oxidizer

An oxidizer is a substance that facilitates oxidation in a chemical reaction by accepting electrons from another substance.... Read More

Isotonic

Isotonic Definition What does isotonic mean? The term "isotonic" is used in physiology, anatomy, and physical chemistry.... Read More

Abiotic factor

An abiotic factor is a non-living element of the environment that influences the way organisms and ecosystems function. Some... Read More

Standard deviation

standard deviation Statistical index of the degree of deviation from central tendency, namely, of the variability within a... Read More

Independent variable

Independent Variable Definition To define an independent variable, let us first understand what a variable is. The word... Read More

Hypotonic solution

Hypotonic Solution Definition What is a hypotonic solution? It refers to a solution that contains a lower amount of solute... 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

Bolus injection

A bolus injection is the act of administering a dose of medication or substance directly into the bloodstream by injection.... Read More

Hyperosmotic

Hyperosmotic Definition What is hyperosmotic? The word hyperosmotic is derived from two Greek words: 'hyper', meaning... Read More

Sexual selection

What is Sexual Selection? The definition of sexual selection is very interesting in biological terms. The sexual selection... 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

Environment

Environment Definition What does environment mean? If you mean physical environment, then it is defined as the surrounding... Read More

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Recalcitrant

Several words of the English language find wide usage in subjects as diverse as literature, science, social science,... Read More

Diaphoresis

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

Flaccid

Flaccid Definition Biology – What is Flaccid? In botany, the term flaccid refers to a cell that lacks turgidity, i.e. it... Read More

Colony-forming unit

Colony Forming Unit Definition A Colony Forming Unit (CFU) in microbiology and cellular biology refers to a measure of... Read More

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More

Polymorphism

Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More

Convoluted

The word convoluted is often used to describe different things, especially structures or components, that have overlapped.... Read More

Sterile

Sterile Definition What does sterile mean? In reproductive biology, we can define sterile as an inability to reproduce or... Read More

Circulation

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

Sexual dimorphism

Sexual Dimorphism Definition Sexual dimorphism refers to the morphological differences (in form or appearance) between... Read More