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Chapter 1 The Study of Life
Ables/Brown flashcard review
23
Biology
9th Grade
01/22/2008

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Term
Biology
Definition
The study of all living things and organisms.
Term
Characteristics of Life
Definition
structure and organization, reproduction, growth and change, reaction to environment, adapt and evolve
Term
Homeostasis
Definition
reacting to and adapting to the environment to maintain constant internal conditions to regulate the body.
Term
Scientfic Process
Definition
observe, hypothesis, experiment and collect data, publish results, form a theory by retesting many times.

Term
Hypothesis
Definition
a testable explanation for a problem
Term
Theory
Definition
a hypothesis that has been tested many times with the same results.
Term
Experiment
Definition
A structured procedure for collecting information
Term
Variable
Definition
the part of the experiment that changes
Term
Control
Definition
The part of the experiment that does not change
Term
Tools of Research (Technology)
Definition
Microscopes, computers, cameras, measuring devices
Term
biosphere
Definition
all living things and the places where they are found on the earth.
Term
biodiversity
Definition
the variety of life in a given area. As a general rule, this gets higher as you get closer to the equator.
Term
species
Definition
a particular type of living things that can reproduce by interbreeding among themselves.
Term
organism
Definition
an individual living thing that shares characteristics of life with all other living things.
Term
cell
Definition
the basic unit of life.
Term
metabolism
Definition
the chemical processes that build up and break down materials in a living thing.
Term
DNA
Definition
a molecule, named dioxribonucleic acid, that is the genetic material in all living things.
Term
system
Definition
an organized group of related parts that interact to form a whole
Term
ecosystem
Definition
a physical environment with different species that interact with one another and non-living things.
Term
evolution
Definition
the change in living things over time.
Term
adaptation
Definition
an inherited trait that gives an advantage to individual organisms that gets passed on to future generations.
Term
observation
Definition
the use of our senses and other tools to look at and study a problem.
Term
data
Definition
recorded qualitative or quantitative observations used to report what happens in an experiment.
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