Evolution (Leaving Cert Biology): Flashcards

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Evolution
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Evolution definition

Genetic change over time producing new life forms

Darwin's research ship name

HMS Beagle

Where Darwin did important evolutionary work

Galápagos Islands

Naturalist who independently developed ideas like Darwin

Alfred Russel Wallace

Year 'On the Origin of Species' published

1859

Observation 1 of natural selection

Organisms produce large numbers of offspring

Observation 2 of natural selection

Population numbers remain relatively stable over time

Observation 3 of natural selection

Inherited variations occur in populations

Natural selection mechanism

Organisms w/ favourable variations survive & reproduce

'Survival of the fittest' means

How well-adapted an organism is to its environment

Embryology definition

Study of embryo and foetus development

Fossil definition

Remains or indication of something that lived long ago

Phylogeny definition

Classification based on evolutionary history; mainly uses DNA, RNA & protein comparisons

Example of multi-resistant bacteria

MRSA (methicillin-resistant Staphylococcus aureus)

Speciation definition

Production of new species because of evolution

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