The scientific study of life

Any procedure or methodology that uses biological systems or living organisms to develop or modify either products or processes for a specific use. This term is commonly associated with genetic engineering, which is one of many applications

The branch of zoology studying the early development of living things

The science of tests and techniques used during the investigation of crimes

The regulatory process in which an organism regulates its internal environment

A regulatory mechanism that contributes to maintaining a state of equilibrium (ex. thermoregulation, water and oxygen regulation)

A proposed, scientifically testable explanation for an observed phenomenon

Generalizes a body of observations. At the time it is made, no exceptions have been found. It explains things but does not describe them; serves as a basis for scientific principles

Made up of more than one cell

An anatomical system composed of tissues serving a common function

An anatomical system composed of a group of organs that work together to perform a specific function or task

Rules assumed to be present, true, and valid

A concept based on scientific laws and facts where a general agreement is present

A body of evidence-based knowledge gained through observation and experimentation related to the natural world and technology

A set of interacting or independent components, real or abstract, that form an integrated whole. An open system is able to interact with its environment. A closed system is isolated from its environment

An explanation of observable phenomena based on available empirical data and guided by a system of logic that includes scientific laws; provides a system of assumptions, accepted principles, and rules of procedure devised to analyze, predict, or otherwise explain the nature or behavior of a specific set of phenomena

An anatomical unit composed of cells organized to perform a similar function

Made up of a single cell