Early ideas of evolution Flashcards

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1
Q

Catastrophism

A

Earth experienced many destructive catastrophic events (floods, droughts, etc) which caused the extinction of species that were then replaced by new species from a region nearby

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2
Q

Uniformitarianism

A

Geological changes are slow and continuous (not catastrophic) and that slow subtle
changes can result in substantial change

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3
Q

Line of Descent

A

Old fossils lead to modern species and species increase in complexity overtime

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4
Q

Inheritance of Acquired traits

A

organisms become better adapted to their environments and body parts used most
often become stronger. Then this trait is passed on to their offspring.

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5
Q

Survival of the fittest

A

organisms compete for limited resources. Organisms with favorable traits that
help them survive will have an increased chance of reproduction. If they reproduce, a growing number
of the population will have these traits in later generations

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6
Q

Descent with modification

A

theory that natural selection does not demonstrate progress but results in
the ability to survive local environmental conditions

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7
Q

Natural selection

A

the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

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