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Darwin's Theory of Evolution (Theory of Evolution ("On the origin…
Darwin's Theory of Evolution
Theory of Evolution
"On the origin of species," Darwin's theory is given
The relative ability of an organism to survive and produce fertile offspring is referred to as fitness
Populations can grow faster than their resources
Variation increases the chance that at least some individuals will survive if the environment changes.
Evolution and natural selection are Darwin's two general ideas
individuals vary and populations evolve
Variation in individuals is not inheritable in natural selection
Darwin
Darwin believed that there were no limits to what scientific
investigation could uncover.
Darwin spend 5 years as a naturalist on the HMS Beagle
Darwin was a naturalist, and so his role was to observe and collect specimens of plants, animals, rocks, and fossils.
the tortoise not reach up to eat plant leaves above their head when in a dome shape
Rock and fossil formations suggested that continents and oceans had changed dramatically.
Influences on Darwin
'Principles of Geology' was written by Charles Lyell
The "On Population" essay was written by Malthus
Lamarck developed the theory of the inheritance of acquired characteristics?
Malthus described a human struggle for existence, due to exponential population growth and limited food
Darwin's theory that present species developed gradually over long periods of time reflects the influence of Lyell
Charles Lyell proposed that gradual geological processes have shaped Earth's surface, inferring that Earth must be far older than most people believed.