Something that we've seen with our own eyes (can be qualitative or quantitative).
This is the name of the book he wrote.
What is the "Origin of Species?"
A class of individuals having some common characteristics or qualities.
What is a species?
The process by which organisms that inherit advantageous traits tend to reproduce more successfully.
What is natural selection?
A record of the history of life on Earth that is often found in the ground.
What are fossils?
"What we would expect to observe or see happen if an idea were accurate."
What is a prediction?
He traveled on this voyage intending to map the South American coastline.
What is the HMS Beagle?
One of the species he found had adapted their necks to be able to reach their food sources depending on which island these species lived on.
What are the Galapagos tortoises?
Each species produces more offspring than can survive.
What is overproduction?
Similar anatomy in different types of animals because of common ancestry.
What are homologous body structures?
In science, an observation that has been repeatedly confirmed.
What is a fact?
This is the method by which Darwin proposed that creatures and species change over time.
What is Natural selection?
Darwin had thought he'd found 14 different species of birds on these islands, but instead, he found he was wrong and had actually found that all 14 species were actually one species.
What are finches?
What is adaptation?
"Leftover" traces of organs or bones that no longer serve a purpose.
What are vestigial organs?
A testable statement about the natural world that can be used to build more complex inferences and explanations.
What is a hypothesis?
This is the name of the islands that Darwin and his crew stopped at during their journey.
What are the Galapagos Islands?
The way he found he could distinguish between the variations of the one species of bird that he found was to observe the foods that these birds would eat. Their source of food changed one important part of these bird's bodies.
What are beaks?
Each individual has a unique combination of inherited traits.
What is genetic variation?
Embryos of all vertebrates are very similar early on.
What is embryology?
A combination of incorporated facts, inferences, and tested hypotheses each point to the same conclusion. It also explains a natural phenomenon.
What is a theory?
This is the age of Darwin when he was asked to travel around the world to observe nature.
What is 22 years old?
Who is Jean Baptiste Lamarck?
Who is Thomas Malthus?
Individuals with the best traits/adaptations will survive and have the opportunity to pass on their traits to offspring. (Acts on physical appearance and not genotype.)
What is selection?
DNA with similar sequences suggests that these species are more closely related.
What is biochemical evidence?