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31 terms

Glencoe Science Biology Chapter 1 Vocabulary

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Biology
The study of life
Organism
anything that has or once had all the characteristics of life
Organization
arranged in an orderly way
Growth
process that results in mass being added to an organism; may include formation of new cells and new structures.
Development
the process of change that occurs during an organism's life to produce a more complex organism
Reproduction
the production of offspring
Species
a group of similar organisms that can mate with each other and produce fertile offspring
Stimulus
any change or signal in the environment that can make an organism react
Response
a reaction to a stimulus
Homeostasis
regulation of an organism's internal conditions to maintain life
Adaptation
any inherited characteristic that results from changes to a species over time
Science
a body of knowledge based on the study of nature
Theory
an explanation of natural phenomenon supported by many observations and experiments over time
Peer Review
a process by which the procedures used during an experiment and the results are evaluated by other scientists
Metric System
uses units with divisions that are powers of ten
SI
International system of units that help scientists
Forensics
the field of study that applies science to matters of legal interest
Ethics
moral principles or values
Observation
the process of gathering information about events or processes in a careful, orderly way
Inferences
Statements made by the speaker that are based on facts or observations
Scientific Method
a series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions
Hypothesis
a testable explanation of a situation
Serendipity
the occurrence of accidental or unexpected but fortunate results
Experiment
investigating a phenomenon in a controlled setting to test a hypothesis
Control Group
an experiment that uses a group for comparison
Experimental Group
the group exposed to the factor being tested
Independent Variable
the one factor that can be changed in a controlled experiment; is the factor tested and affects the experiment outcome
Dependent Variable
factor being measured in a controlled experiment;value may change because of change to the independent variable
Constant
a factor the remains fixed during an experiment while the independent and dependent variables change
Data
information gathered from observations
Safety Symbol
a logo designed to alert you about a specific danger