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