Topic 4 Test Vocabulary
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Theory that all living organisms came from earlier forms of life
Evolution
The variety of all life on Earth at different levels and how they all interact
Biodiversity
A model of features of related organisms (may be different species)
Cladogram
The “picture” scientist form based on discovered fossils and what we have learned from them
Fossil Record
A comparison of genome differences in different species
Molecular Clock
A timeframe in evolutionary history when a large number of new life forms appeared in a relatively short time
Cambrian Explosion
A relatively quick evolutionary change to a population in a small area
Microevolution
An evolutionary change over a long period of time due to a major environmental change
Macroevolution
An organism found in a single geographic location
Endemic Species
Structures that have lost their use over time through evolution
Vestigial Structure
A group of the same species in the same area that breed with each other
Population
A chronological model showing the differences in species and ancestry, including extinct branches.
Evolutionary Tree
Structures that have a common function and suggest a common ancestry
Homologous Structure
Managing resources ecologically, economically, and socially to support the needs of current and future generations
Sustainability
Living parts of an ecosystem
Biotic Factors
Non-living parts of an ecosystem
Abiotic Factors
How organisms that develop beneficial traits allow them to survive and reproduce above others
Natural Selection