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The closeness of two or more measurements to each other.
A theory or guess
A property which a collection or complex system has, but which the individual members do not have.
A three-dimensional measure of space occupied or displaced by an object
The ratio of variation due to differences between genotypes to the total phenotypic variation for a character or trait in a population.
The scientific analysis and study of interactions among organisms and their environment.
The biological process by which new individual organisms – "offspring" – are produced from their "parents".
The basic unit of length in the metric system
Change in a kind of organism over time; process by which modern organisms have descended from ancient organisms (decent with modification)
The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
The chemical processes that occur within a living organism in order to maintain life.
The branch of molecular biology concerned with the structure, function, evolution, and mapping of genomes.
A small gas burner used in laboratories.
The group in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do.
The fundamental units of length.
The degree to which a measurement, or an estimate based on measurements, represents the true value of the attribute that is being measured.
liquid volume
A device that measures liquid precipitation (rain), as opposed to solid precipitation (snow gauge) over a set period of time.
The mass of water vapor contained in a certain volume of air.
Factor that changes as a result of changes in other variables
Any intentionally ineffective medical treatment, such as a sugar pill, used to replace medication.
Factor that, as it changes, affects the measure of another variable
A unit of mass equal to 1000 grams: the basic unit of mass in the International System of Units (SI).
A partial description of the quantum state of an electron (or other particle) orbiting the nucleus of an atom.
The study of heredity.
The study of living organisms and how they function.
A measure of the distance of a straight line between two points.
The problem solving process is also called the scientific method.