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.