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science #3
textbook ch 3
15
Science
10th Grade
09/19/2007

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Term
autosome
Definition
a chromosome that is not a sex chromosome, found in the body cells.
Term
base
Definition
a substance with a pH greater then 7 and produces hydroxide ions in water.
Term
batholiths
Definition
the largest of igneous intrusions, formed as magma is forced upwards and cools.
Term
bell curve
Definition
a curve on a graph the shape of a bell.
Term
benthic zone
Definition
the floor of the ocean
Term
beta decay
Definition
the decay of an element by beta emission.
Term
beta radiation
Definition
high speed electrons.
Term
bias
Definition
the tendency for beliefs, theories, and presuppositions to influence interpretation of data.
Term
big-bang theory
Definition
the theory that the universe began as a huge explosionforming a gigantic expamding cloud.
Term
binary fission
Definition
asexual reproduction in prokaryotes that produces identical offspring.
Term
binary compound
Definition
a compound made of only two elements
Term
binomial nomenclature
Definition
a system of naming organisms using the genus name and species name.
Term
biodiversity
Definition
th variety and number of organisms at one time in a specific area.
Term
biogeochemical cycle
Definition
the process by which materials are circulated through the environment.
Term
biomass
Definition
the dry weight of an organic material in a given ecosystem
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