| Charles Darwin | Evolution | Natural Selection | Evidence for Evolution | Odds and Ends |
| 10 | 10 | 10 | 10 | 10 |
| 20 | 20 | 20 | 20 | 20 |
| 30 | 30 | 30 | 30 | 30 |
| 40 | 40 | 40 | 40 | 40 |
| 50 | 50 | 50 | 50 | 50 |
| Final Question | ||||
What ship was Darwin on?
What ship was Darwin on?
The HMS Beagle
What was Darwin's job on the ship?
What was Darwin's job on the ship?
He was the naturalist
Charles Darwin wrote the book ______________
Charles Darwin wrote the book ______________
On the Origin of Species
Where did Darwin see the greatest diversity of species?
Where did Darwin see the greatest diversity of species?
On the Galapagos Islands
How did Darwin know that species had changed over long periods of time?
How did Darwin know that species had changed over long periods of time?
He saw evidence in the fossils that species had changed
What is evolution?
What is evolution?
When species change over time to be better adapted to their environment
What is selective breeding?
What is selective breeding?
When humans choose what traits to breed for. Humans do the selecting for traits
How is selective breeding similar to natural selection?
How is selective breeding similar to natural selection?
Certain traits are beneficial and are selected for. These traits appear more often in the population
Why do the Galapagos iguana have long claws?
Why do the Galapagos iguana have long claws?
To hold on to the rocks better
Why do the finches have differently shaped beaks on the different islands?
Why do the finches have differently shaped beaks on the different islands?
Because the beaks adapted to be able to get the food on the island better
Evolution occurs through a process called ___________
Evolution occurs through a process called ___________
Natural Selection
What is natural selection?
What is natural selection?
How individuals that are better adapted to the environment are more likely to survive and reproduce
What 3 main factors did Darwin identify that affect natural selection?
What 3 main factors did Darwin identify that affect natural selection?
Overpopulation, Variations, and Competition
How does competition work with natural selection?
How does competition work with natural selection?
Organisms that are better adapted survive better
Why are only traits that are controlled by genes acted upon by natural selection?
Why are only traits that are controlled by genes acted upon by natural selection?
Because only inherited traits can be selected for over time
How is DNA used as evidence for evolution?
How is DNA used as evidence for evolution?
The fewer differences between the DNA / proteins of 2 species, the more closely they are related
What is it when many species have similar body structure?
What is it when many species have similar body structure?
Homologous structures
What does it suggest when the embryos of 2 species look very similar for only a short time before looking different?
What does it suggest when the embryos of 2 species look very similar for only a short time before looking different?
That the species are not closely related
What chart is used to show the evolutionary relationships between species?
What chart is used to show the evolutionary relationships between species?
A branching tree (cladogram)
How are the arms of humans and bats homologous structures?
How are the arms of humans and bats homologous structures?
They have the same arrangement of bones
What is needed for a species to change?
What is needed for a species to change?
Isolation or change in environment
What is a scientific theory?
What is a scientific theory?
A well tested concept that explains a wide variety of explanations
What is it when there are no more of a species alive?
What is it when there are no more of a species alive?
The species is extinct
How long did it take Darwin to write his book after the HMS Beagle finished her voyage?
How long did it take Darwin to write his book after the HMS Beagle finished her voyage?
20 years
What are 3 types of evidence for evolution?
What are 3 types of evidence for evolution?
Fossils, similarities in early development, and homologous structures
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