Darwin Is Soooo Last Year AFACCT 2010. Just kidding… Chuck Darwin (1809-1882)
Charles Darwin (1809-1882) and The Galapagos Islands
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Charles Darwin (1809-1882)and
The Galapagos Islands
Darwin’s IdeasThe diversity of living species was far
greater than anyone had previously known
These observations led him to develop the theory of evolution
Darwin’s Finches
Environmental adaptation
Each islandhad its own type of tortoises and finches that were clearly different from other islands
List reasons why the tortes and finches would be different?
EvolutionEvolution is a well supported explanation of phenomena that have occurred in the natural world
A theory in science is a well tested hypothesis, not just a guess
What is the evidence that supports evolution?
The Grand Canyon
700 – 1,100 million years
300 – 500 million years
280 – 300 million years
270 – 280 million years
Rock layers take time to form. Processes can be seen in action today.How can fossils (remains of organisms) in these rocks be evidence of evolution?
Relative datingHow can rock formations/layers
containing fossils (remains of organisms) be
evidence of evolution?
Carbon 14/Carbon 12
Carbon 14/Carbon 12
ratio changes after death
of an organism giving
age estimate.
Evolution of Whales
Look at the diagrams comment them
The effect of environment on the species. The effect of use and disuse of organs andThe inheritance of acquired characters.
Lamark (1801-1809)Theory of acquired characteristics
Give a reason why a giraffe may have acquired a longer neck?