Adaptations Over Time. Who was Jean Baptiste de Lamarck?. Hypothesized that traits developed during a parents lifetime are passed to offspring Inheritance of acquired characteristics Ex: large muscles. Larmarck. Who was Charles Darwin?. Theory of Natural Selection
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Hypothesized that traits developed during a parents lifetime are passed to offspring
Inheritance of acquired characteristics
Ex: large musclesLarmarck
Theory of Natural Selection
Organisms with traits best suited to their environment are more likely to survive and reproduce.
Traits are passed to more offspring.
Changes take place graduallyDarwin
Variation – inherited trait that makes the individual different from others in the species
Permanent changes or gene mutations
May be helpful or harmfulVariation
Adaptation – any variation that makes the organism bettered suited to its environment
Ex: color, shape, chemical makeupAdaptation
Gradualism model –slow, ongoing process
Punctuated equilibrium – rapid evolutionThe Speed of Evolution
Define in your own words
Definition from book
Use the word in a sentence – what does it mean to you?
Draw a picture which represents the word
The gene that takes control and shows up if it is there
Factor that dominated or covered up the other form
People will have blue eyes if they have the dominant gene
The Romans dominated the Greeks
What are fossils? place?
Fossils are the preserved remains or traces of an organism that lived in the past.Fossils
Molds and cast fossils
Most fossils form when organisms die and become buried in sedimentsTypes of fossils
“Calendar” of the Earth’s history
Precambrian Time is the largest span of time
First 4 billion year’s of the Earth’s history
Few fossils from these ancient timesLife’s History
facts about the plants and animals that were alive during the period
illustrations showing the landforms and bodies of water that were present.Geologic Time Scale