Charles Darwin And Theory Of Evolution Prt 1 Flashcards
Theory
A well supported idea in science that explains all observations from a phenomenon; all observations, experiments support the theory, no evidence disagrees with the theory
Evolution
Change in populations over time
Charles Darwin
Wrote “On the Origin of Species by Means of Natural Selection” after taking a 5 year voyage around the world on the HMS Beagle and visiting the Galápagos Islands
Alfred Russell Wallace
Also developed the idea of natural selection by means of natural selection at the same time as Darwin
Artificial selection
Selecting desired traits for the purpose of breeding animals like dogs, cats, cattle (what caused the evolution for all the different kind of dog breeds)
Natural selection
When organisms with a desirable variation survive, reproduce, and pass on that favorable variation to future generations
Fitness
The ability to survive, reproduce and pass on traits to future generations
Survival of the fittest
Another way of thinking of natural selection
Galápagos Islands
Where Darwin visited and observed many organism that helped shape his ideas of natural selection
Overproduction
More babies are born that can survive in a population
Variation
All individuals in a population are genetically different (due to the presence of mutations that accumulate variety in a species)
Selection pressure
Any factor that results in natural selection (like a drought, a predator, competition for food)
Best adapted
Those individuals that are best adapted are most fit
Many generations
Over a long time
Adaptation
Any variation that improves the chances of an organisms surviving, reproducing, and passing on its traits to future generations