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Biology
Chapter 1
23
Science
9th Grade
11/29/2007

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Term

biology

Definition
The science of life
Term
organization
Definition
they are arrange in an orderly way
Term
Growth
Definition

- Results in the addition of mass to an organism

- in many organisms, the addition of cells

Term
Development
Definition
The prcess of natural changes that take place during the life of an organism
Term
reproduction
Definition
the production of offspring
Term
species
Definition
a group of organisms that can breed with one another and produce fertile offspring
Term
stimulus(plural stimuli)
Definition
Anything that is part of either environment and causes some sort of reaction by the organism
Term
Response
Definition
reaction to stimuli
Term
homeostasis
Definition
regulation of an organsim's internal conditions to maintain life
Term
adaptation
Definition
any inherited characteristics tht results from changes to a species over time
Term
observation
Definition
a direct method of gathering informatin in an orderly way
Term
inferences
Definition
When you combine what you know with what you have learned
Term
scientific method
Definition

Form a hypothesis

Collect Data

Analyze the Data

Report Conclusions

Term
hypothesis
Definition

a testable explanation of a situation

- an educated guess of what the outcome of an expirement will be

Term
Serendipity
Definition

the occurance of accidental or unexpected, but fortunate results

- some thing good happens which wasn't supposed to happen

Term
experiment
Definition
investigates a phenomenon in a controlled setting to test a hypothesis
Term
control group
Definition
a group used for comarison in expirementation
Term
experimental group
Definition
the group exposed to the factor being tested
Term
independent variable
Definition
it is the tested factor and it might affect the outcome of the expiriment
Term
dependent variable
Definition
It results from or depends on changes to the independent variable
Term
constant
Definition
a factor that remains fixed during an experiment while independent and dependent variables change
Term
data
Definition
information gained from observations
Term
safety symbol
Definition
a logo designed to alert you about a specific danger
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