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Luke Emmert
Ch. 7 Life Science Vocab
12
Science
8th Grade
04/16/2014

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Term
adaptation
Definition
characteristic that helps an organism survive and reproduce in its environment
Term
species
Definition
group of organisms that can mate with each other to produce fertile offspring
Term
evolution
Definition
the process by which populations accumulate inherited changes over time.
Term
fossil
Definition
solidified imprints or remains of once-living organisms
Term
fossil record
Definition
fossils historical sequence of life
Term
vestigial structure
Definition
remnants of once-useful structures
Term
trait
Definition
distinguishing qualities
Term
selective breeding
Definition
when humans select which traits will be passed to the offspring
Term
natural selection
Definition
overproduction, genetic variation, struggle to survive, successful reproduction.
Term
mutation
Definition
changes in a gene
Term
generation time
Definition
period between birth of one generation and the birth of the next generation
Term
speciation
Definition
separation, adaptation, division
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