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Biology
The study of living things, the science of life.
Kingdom
A category used to group living things with similar features.
Metabolism
The process by which all living things process energy to power other processes.
Homeostasis
A stable internal environment maintained by living organisms.
Emergent Properties
New properties that become apparent at higher levels of organization that were absent at lower levels.
Evolution
Genetic change in a species over time, driven by natural selection.
Natural Selection
The mechanism for evolution where organisms better adapted to their environment tend to survive and produce more offspring.
Cell Theory
All organisms are composed of at least one cell; the cell is the basic unit of life.
Gene Theory
Genetic information is encoded in DNA and determines an organism's form and function.
Theory of Heredity
Genes are passed down generations as discrete units.
Organismal Level
A stage in the organization of life that includes tissues, organs, organ systems, and individual organisms.
Population Level
A level of organization that pertains to groups of organisms of the same species living in a particular area.
Symbiosis
A relationship where two species live in direct contact, often for mutual benefit.
Structure Determines Function
The concept that evolutionary processes favor structures that serve a specific function.
Scientific Method
A systematic way scientists conduct experiments and evaluate hypotheses.
Hypothesis
An educated guess that proposes a possible explanation for a phenomenon.
Observation
The first step in the scientific process involving careful examination of natural phenomena.
Control Group
A standard for comparison in an experiment that does not receive the experimental treatment.
Conclusion
A statement derived from experimental results that tentatively accepts or rejects a hypothesis.
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