35 results found

Search Results for: attraction

Attraction

Definition noun, plural: attractions (1) The act, capacity, or tendency to attract (2) The process between objects being... Read More

Cohesion

Cohesion Definition What is cohesion? Cohesion, in science definition, refers to the state of cohering or sticking together... Read More

Ionic bond

Definition noun plural: ionic bonds A type of chemical bond in which atoms, ions, or molecules are held together by... Read More

Affinity

Definition noun, plural: affinities (1) (taxonomy) The resemblances in structure between two organisms or between biological... Read More

Malaria : Plasmodium togetherness a strategy for breeding success

Malaria, which infects 600 million people in the world and leads annually to 2 million deaths, is the most widespread of... Read More

Taxis

Definition noun, plural: taxes A behavioral response of a cell or an organism to an external stimulus, which may either be... Read More

Capillary action

Definition noun The movement of a liquid, e.g. water molecules, through a narrow space as a result of cohesion, adhesion,... Read More

Adhesion

Definition noun (cell biology) The binding of a cell to another cell, or a cell to a surface, via specific cell adhesion... Read More

Hydrogen bond

Definition noun plural: hydrogen bonds A type of chemical bond that is formed when the slightly positive hydrogen atom of... Read More

Covalent bond

Covalent Bond Definition What is a covalent bond? In chemistry and other fundamental science fields, a covalent bond is... Read More

Water

Water Definition (1) (biochemistry) A chemical substance, with chemical formula H2O, that is a clear, colorless, odorless,... Read More

Plant Water Regulation

A plant requires water as an essential ingredient of photolysis, the photochemical stage of photosynthesis where water is... Read More

Thermotaxis

Definition noun A form of taxis characterized by the directional movement of an organism in response to... Read More

Inorganic compound

Definition noun plural: inorganic compounds A chemical compound lacking both carbon-carbon (C-C) and carbon-hydrogen... Read More

Magnetotaxis

Definition noun A form of taxis characterized by a directional movement of an organism in response to a magnetic... Read More

Intermolecular force

Definition noun The force that acts between stable molecules or between functional groups of macromolecules. Supplement An... Read More

Genetic diversity

Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More

Phototaxis

Definition noun A form of taxis characterized by the directional movement of an organism in response to... Read More

Kinesis

Definition noun, plural: kineses A behavioral response of a cell or an organism to a stimulus but not directionally oriented... Read More

Rheotaxis

Definition noun A form of taxis characterized by the directional movement of an organism in response to a current of water... Read More

Gravitaxis

Definition noun A form of taxis characterized by the directional movement of an organism in response to... Read More

Perturbation

perturbation 1. The act of perturbing, or the state of being perturbed; especially, agitation of mind. 2. (Science:... Read More

Emulsoid

Emulsoid a colloidal dispersion in which the dispersed particles are more or less liquid and exert a certain attraction on... Read More

Affinity chromatography

Affinity chromatography (Science: investigation) a technique of analytical chemistry used to separate and purify a... Read More

Fat

Definition noun plural: fats fats, fæts A term largely applied to storage lipids in animal tissues that are usually solid... Read More

Segregation

segregation 1. The act of segregating, or the state of being segregated; separation from others; a parting. 2. (Science:... Read More

Arthropod

Arthropod Definition What is an arthropod? An arthropod is an invertebrate living organism characterized by the presence of... Read More

Surface tension

Surface tension The expression of intermolecular attraction at the surface of a liquid, in contact with air or another gas,... Read More

Adhesive

Adhesive 1. Sticky; tenacious, as glutinous substances that cause the adherence of two surfaces. They include glues... Read More

Mordant

mordant 1. Any corroding substance used in etching. 2. Any substance, as alum or copperas, which, having a twofold... Read More

Moth

Moth Definition A moth is a lepidopteran insect. Moths belong to the Order Lepidoptera, together with the butterflies.... Read More

Natural selection

Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More

Witch

witch 1. One who practices the black art, or magic; one regarded as possessing supernatural or magical power by compact with... Read More

Compound

Definition noun plural: compounds com·pound, ˈkɒmpaʊnd (general) A material made up of two or more parts or... Read More

Gene Regulation in Eukaryotes

Reviewed by: Mary Anne Clark, Ph.D. Eukaryotic Gene Structure In prokaryotes the DNA is located in the... Read More