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Act 5,6 Evolution

Across
A fossils are one of the many ......... that dinasours once lived
Includes all of the fossils that have existed in the 4.5 billion years of earth's history
The formation of major new groups of organism
With this scientist estimate not only the order of rock layers and fossil formation, but how many years ago rocks layers and fossils formed.
four-limbed mammal, reptiles, amphibians
Layers of lava and and of compressed sediments are called
Down
Bones, teeth, shells, footprints are all examples of ....
A diagram showing the inferred evolutionary relationships among various biological species
Provides the relatives ages of rocks layers and the fossils within them
The study of rock layers
Gradual development