Chapter 1 | Biology: The Study of Life

Biology
the study of life
Organism
a single living thing
Organization
orderly structure shown by living things
Reproduction
the production of offspring
Species
a group of similar organisms that naturally mate with each other and produce fertile offspring
Growth
increase in the amount of living material and formation of new structures in an organism; a characteristic of all living things
Development
All of the changes that take place during the life of an organism
Environment
everything that surrounds a living thing
Stimulus
A change in an organism’s surroundings that causes the organism to react.
Response
a reaction to a stimulus
Homeostasis
process by which organisms maintain a relatively stable internal environment.
Energy
the ability to cause change
Adaptation
any inherited characteristic that increases an organism’s chance of survival
Evolution
the process by which species gradually change over time
Scientific Method
a series of steps that scientists use to answer questions and solve problems
Hypothesis
a testable explanation for an observation
Experiment
a planned procedure to test a hypothesis
Control Group
part of an experiment that is set to normal conditions to provide a standard that you can compare results against
Independent Variable
in an experiment, the conditions whose effects are tested; the conditions the researcher sets
Dependent Variable
in an experiment, the conditions that we measure changes in; changes in these conditions depend on changes in other variables
Data
information
Theory
A hypothesis that has been supported by a significant amount of data
Ethics
The principles of right and wrong that guide an individual in making decisions.
Technology
use of science to fit a practical purpose
Quantitative Data
data that is measurable and can be expressed in numbers; examples include 14cm and 96% correct answers
Qualitative Data
data that cannot be measured in numerical values; behaviors, emotions, scents, textures, etc.