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BIOL - 161 Vocab Ch1
Vocabulary Chapter 1
30
Biology
Undergraduate 2
11/28/2011

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Term
Biology
Definition
the science of life
Term
Cell
Definition
the smallest organizational level of life
Term
Unicellular
Definition
used to describe an organism that consists of one cell
Term
Metabolism
Definition
all chemical reactions within an organism
Term
Energy
Definition
the non-material property used by organisms to do the work of building and maintaining structure
Term
Gene
Definition
a unit of hereditary instruction
Term
Development
Definition
a change in form during one individual's life time
Term
Enzyme
Definition
substance which increases the rate of a specific chemical reaction
Term
Homeostasis
Definition
maintenance of internal conditions within a limited range
Term
Stimuli
Definition
changes in the environment
Term
Atom
Definition
smallest unit of a substance having the properties of that substance
Term
Biosphere
Definition
includes every place on earth where living organisms are found
Term
Population
Definition
all members of a species living in the same habitat
Term
Proton
Definition
a subatomic particle
Term
Binomial
Definition
consisting of two names
Term
System of Classification
Definition
groups objects according to similarities
Term
Family
Definition
the taxonomic category composed of similar genera
Term
Monera
Definition
kingdom name
Term
DNA
Definition
the hereditary molecule
Term
Adaption
Definition
increases the likelihood that an organism will reproduce
Term
Spontaneous Generation
Definition
nonliving material producing living organisms
Term
Hypothesis
Definition
a tentative testable statement of cause and effect
Term
Hypothesis Test
Definition
an experiment
Term
Variable
Definition
a condition which can change
Term
Control Group
Definition
in an experiment, those objects NOT exposed to the variable being tested
Term
Experimental Group
Definition
in an experiment, those objects exposed to the variable being tested
Term
Data
Definition
group of facts from which conclusions may be drawm
Term
Theory
Definition
a collection of related hypotheses
Term
Penicillium
Definition
a genus of mold
Term
Carcinogen
Definition
cancer causing agent
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