Old Men
Looked at finches on the Galapagos Islands and developed the theory of evolution by natural selection
Charles Darwin
Means living
Geological processes happen slowly and still cause changes so there has been enough time for species to change
Earth's History
Barriers such as pheromones, habitat use, and behavioural
Biological Barriers
The modern theory that evolution occurs slowly and works through small changes over time
Gradualism
Thought acquired characteristics could be passed on to offspring resulting in evolution
Jean-Baptiste Lamarck
A group of organisms that interbreed and produce viable, fertile offspring
Species
Strata present differently from each other, not all species are present in every layer, so not all species have always existed which means species have changed over time
Fossil Record
Barriers such as rivers, mountains, and oceans
Geographical Barriers
The modern theory that evolution occurs rapidly between periods of steadiness
Punctuated Equilibrium
Gave us the taxonomic classification system we use today
Linnaeus
Process that can change the characteristics of a population over time due to the survival specific individuals with specific, heritable characteristics which those individual then pass on
Natural selection
Structures with different functions by similar structures due to common ancestry
Homologous Structures
The type of barrier that resulted in the different populations of snapping shrimp around Panama
Geographical Barrier
Acquired characteristics are passed on to offspring and create change in the following generations
Lamarckian Evolution
Also developed the theory of evolution by natural selection but didn't publish first
Alfred Russel Wallace
Area with specific characteristics in which an organism lives and survives due to adaptations
Habitat
Embryos of closely related species look more similar further into development than less closely related species
Embryology
The type of barrier that still separates Darwin's Finches
Behavioural
Some individuals have traits which make them better suited to the environment, allowing them to survive and pass on those traits to the next generation and resulting in significant change in the population over time
Theory of evolution by natural selection
Examined fossils and determined that revolutions must have been responsible for the massive loss of species in each layer
George Cuvier
The role individuals play in a community or ecosystem, includes resources and interactions
Looks at the global distribution of species
Biogeography
The process by which a population changes over time to become different enough that it can no longer reproduce with the original population
Speciation
Species become more similar to each other in either structure or needs
Convergent Evolution