Darwin drew from the empirical evidence from these, information about organisms from the past.
What are fossils?
100
A graph used to represent the pattern of decent from the common ancestors of species.
What is an evolutionary tree?
100
Structures that represent variations of a theme shared in the anatomies of common ancestors?
What are homologous structures?
200
Darwin writes this book based on the observational evidence he gained about nature.
What is The Origin of Species
200
Scientific study of geographic distribution of species, provides evidence for evolution.
What is a biogeography?
200
This describes feature that species have in common due to convergent evolution.
What is analogous?
300
Factor of evolution in which the introduction of these are indicative of natural selection.
What are introduced species?
300
This occurs when an anatomical structure appears superficially different but had the same origin. They became different because they perform different functions.
What is adaptive radiation?
300
Mutations in color in a species in which normally light colored organisms have dark coloration. Noted for observational study in peppered moths.
What are melanistic organisms?
400
The process Darwin hypothesized, where individuals with heritable traits survive and reproduce because of those traits.
What is natural selection?
400
The independent evolution of similar features across lineages of species.
What is convergent evolution?
400
Multiple lines of evidence in limbs ofvarying terrestrial animals, including hippos, determine they are closely related to these organisms.
What are cetaceans?
500
Darwin's research island species are related to species in mainland ecosystems, and deny this idea that isolated species are found nowhere else in the world.
What are endemic species?
500
This occurs when natural selection within an environment affects independently evolving species within the same environment in similar ways.
What is convergent evolution?
500
The scientific nomenclature for the ends of mammalian appendages, whether in the limbs of humans or cats or whales.