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35 Cards in this Set

  • Front
  • Back
An observation that has been repeatly confirmed
Fact
A well researched explanation of some aspect of the natural world
Theory
A descriptive generalization about how some aspect of the natural world behaves under stated conditions.
Law
When a species becomes better suited to the environment.
(Adapts)
Adaptation
The process by which evolution occurs. The selection of organisms best suited to the environment
Natural selection
Structures of different species with similar functions but different origins.
Analogous structures
structures of different species with different functions but similar origins
Homologous Structures
structures that appear to have no current function
Vestigial Structures
The study of embryo development (before birth)
embryology
the intermediate (middle) species between 2 other species (missing link)
transition species
An observation that has been repeatly confirmed
Fact
A well researched explanation of some aspect of the natural world
Theory
A descriptive generalization about how some aspect of the natural world behaves under stated conditions.
Law
When a species becomes better suited to the environment.
(Adapts)
Adaptation
The process by which evolution occurs. The selection of organisms best suited to the environment
Natural selection
Structures of different species with similar functions but different origins.
Analogous structures
structures of different species with different functions but similar origins
Homologous Structures
structures that appear to have no current function
Vestigial Structures
The study of embryo development (before birth)
embryology
the intermediate (middle) species between 2 other species (missing link)
transition species
random changes in genetic characterstics.
Mutation
variety of genetic traits with in an interbreeding population
genetic variation
measure of radioactive isotopes to determine the age of a fossil or other organic item
radiometric dating (carbon dating)
the study of shape or form
morphology
evolution as a gradual change in a species over time
gradualism
evolution by long periods of no change followed by rapid change
punctuated equilibrium
remains or evidence of living things from long ago
fossils
species develop similiar characteristics due to similiar environment
convergient evolution
2 populations of the same species due to isolation, become less like each other
Often leads to speciation
divergent evolution
appearance of 1 or more new species
speciation
change among species such as extinction
macroevolution
change that occure within a species over time
(beak change in birds-video)
microevolution
the reproductive separation of populations either by physcial or behavior boundaries
isolation
the back and forth evolutionary adjustments between interacting species.
coevolution
struggle for limited resources (food, water, sunlight, mates, territory)
competition