Search Results for: measure
Darwinian fitness
Darwinian Fitness Definition Darwinian fitness refers to the measure of an individual organism's or genotype's reproductive... Read More
Inbreeding
Inbreeding is a type of breeding or mating where closely related individuals with a common ancestor produce progenies with... Read More
Ecological Research: Measuring & Analysis
By: Maria Victoria Gonzaga Previously in this lesson, we learned that high biodiversity is essential to a healthy... Read More
Probability
Probability Definition How do you define probability? In science, probability is a measurement tool that calculates the... 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
Optical density
Definition noun (1) The measure of transmittance of an optical medium for a given wavelength. The higher the OD the lower... Read More
Phenol coefficient
Chemical disinfectants are categorized based on the power of their disinfection for microbes and viruses. Strong... Read More
Primary productivity
Planet Earth is home to different types of life forms ranging from microscopic bacteria to giant whales and elephants. To... Read More
Community (biology)
Community, in biology, refers to the assemblage of interacting organisms (either of the same or different species)... Read More
Concentration
Definition noun (1) The measure of the amount of a sub-component (especially solute) in a solution (2) The ratio of the mass... Read More
Respiration rate
Respiration Rate Definition Respiration rate is a vital life process that expresses the breathing rate in an organism... Read More
Residual volume
Residual volume is a term that is most often seen in lung physiology where it is defined as the amount of air remaining in... Read More
Association constant
Definition noun A mathematical constant that describes the bonding affinity between two molecules at... Read More
Competitive binding assay
Definition An assay based on the competition between labeled and unlabeled ligand for the reactive sites of a particular... Read More
Plaque assay
Definition noun An assay used for virus isolation and purification, and to determine viral titers. Supplement The plaque... Read More
Respirometer
respirometer 1. An instrument for measuring the extent of the respiratory movements. 2. An instrument for measuring oxygen... Read More
Sensitivity and specificity
Definition noun Statistical measures for assessing the results of diagnostics and screening tests wherein sensitivity... Read More
Biodiversity
The biological world or life on earth is a marvel that has amazed us since time immemorial. The rich natural diversity of... Read More
Absorbance
Definition noun (analytical chemistry) A logarithmic measure of the amount of light absorbed (at particular wavelength) as... Read More
Independent variable
Independent Variable Definition To define an independent variable, let us first understand what a variable is. The word... Read More
Redox reaction
Redox Reaction Definition What are redox reactions? This is a common term in chemistry and biology. In chemistry, a redox... Read More
Genetic variability
Genetic Variability Definition Genetic variability refers to the tendency of individual genetic characteristics in a... Read More
Net photosynthesis
Definition noun (1) The difference between the total amount of photosynthesis and the sum of the rates of respiration (i.e.... Read More
Relative fitness
Definition noun A measure of biological fitness wherein the reproductive rate (of a genotype or a phenotype) is relative to... Read More