Geologic Time. Determining geological ages Relative dating – placing rocks and events in their proper sequence of formation, without actual dates. Numerical.
Absolute Dating. Absolute age - the actual age, or date, in years when a geological event occurred or a rock was formed.
Organic Evolution & Natural Selection. Organic Evolution ► changes in life through time ► development of complex life forms ► development of a variety.
A species is a group of similar organisms that a. Can mate and produce fertile offspring b. Can live together on an island c. Have all the same traits.
More Than Classy EvolutionThe ErasFossils and Earth How Old Is It? $500 $400 $300 $200 $100.
Chapter 25 ~ Phylogeny & Systematics. Phylogeny: the evolutionary history of a species Systematics:Systematics: the study of biological diversity in an.
Question of the Day Question: How do we know that continents move? Answer: ……… Turn In: Label the Earth Worksheet (blue)
Fossil Dating. HOW DO WE KNOW THE AGE OF FOSSILS? -Scientists use 2 methods to determine the age of fossils: 1. Relative Dating 2. Absolute Dating.