Charles Darwin and Natural Selection

Observe 1: If left unchecked, there will be an exponential increase in population

Observe 2: In nature, things tend to remain in size

Observe 3: Environmental resources are limited

Inference 1: Struggle for existence (competing)

Observe 4: Individuals of a populations are not exactly alike

Observe 5: Much variations are inherited

Inference 2: Struggle for existence (survival of the fittest)

Inference 3: Natural selection

Evolution is the progressive change in an organism over time

Beagle is the expedition that Charles Darwin took 5 years on to truly identify the process of evolution

Jean de Lamarck is a man that identified that evolution happened by aquired time (nervous fluid)

On Origin of Species is a book published by Charles Darwin

Darwin published his idea before Malthus did

Homologous structure means that things must share the same structure (doesn’t need to have the same function just the same structure)

Charles Darwin is a scientist that created the concept of evolution and natural selection

Eugenics is the concept of evolution based on humans only

Wallace helped create the theory of evolution but did not get to share his ideas because his birds that were being observed were burnt up

Bred finches to prove evolution

Biogeography is the study of the earth and organisms on it

Analogous structure is organisms that have same function, but structures that are different

Vestigial structure is what is left over from a common ancestor that no longer has a purpose now

Embryonic similarities are when embryos are very similar and hard to identify

DNA similarities are most accurate and help us identify just how closely related we are to other species

Divergent evolution is when 2 similar species are put on different islands

Convergent evolution is when 2 different species are put on the same island

Adaptive radiation is when a species evolves into too many species with their own differences

Artificial selection is when the humans choose the traits that will later get passed down to generations