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Biology Ch. 1 and 13
midterm review
15
Biology
9th Grade
01/10/2011

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Cards

Term
Characteristics of all living things
Definition
movement/respond to environment
need energy
capable of reproduction
made of cells
call all grow
are made of same atom
Term
Energy
Definition
the capacity to do work
Term
Interaction with environment
Definition
avoiding danger, getting food, H20, reproduce
Term
Homeostasis
Definition
the ability of all organisms to maintain a constant internal environment despite fluctuations in the external environment
Term
Cell
Definition
the smallest unit of life; 2 types: prokaryotic, eukaryotic
Term
Prokaryotic
Definition
pro=before, karyotic=nucleus
no nuceleus
ex. bacteria
Term
Eukaryotic
Definition
eu= true karyotic=nucleus
ex/ plant cells, animal cells
Term
Scientific names
Definition
Genus species
ex. Armidillium vulgare
Term
species
Definition
a group of organisms capable of reproducing successfully (can produce viable offspring)
Term
Scientific method
Definition
a testable, quantitative, objective, self-correcting logic based problem solving method
Term
Theory
Definition
a broad explanation of a great diversity of observations which is supported by a large and usually growing body of evidence. Theories generate new hypotheseses.
Term
Hypothesis
Definition
a proposed explanation for a set of observations
Term
variable
Definition
a factor that is subject to change
Term
evolution
Definition
the change in a population over time
Term
Gene
Definition
what is passed down from organisms to their offspring which determines their traits, heriditary
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