Evolution (Leaving Cert Biology): Flashcards
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Definition of evolution
Definition of evolution
The genetic change in organisms over a long period of time
Most widely accepted theory of evolution
Most widely accepted theory of evolution
Theory of natural selection
Proposer of natural selection theory
Proposer of natural selection theory
Charles Darwin
Year Darwin published natural selection theory
Year Darwin published natural selection theory
1858
Scientist with similar ideas to Darwin at same time
Scientist with similar ideas to Darwin at same time
Alfred Russell Wallace
Observation 1 of natural selection
Observation 1 of natural selection
Organisms produce large numbers of offspring
Observation 2 of natural selection
Observation 2 of natural selection
Environment can only support a limited number of organisms
Observation 3 of natural selection
Observation 3 of natural selection
Genetic variations exist within populations
Deduction 1 of natural selection
Deduction 1 of natural selection
Struggle for existence (competition)
What animals compete for
What animals compete for
Space, food, water, mates
What plants compete for
What plants compete for
Light, space, water, minerals
Deduction 2 of natural selection
Deduction 2 of natural selection
Natural selection/survival of the fittest
Definition of a fossil
Definition of a fossil
Preserved remains/impression of organism that lived long ago
How modern organisms compare to fossil predecessors
How modern organisms compare to fossil predecessors
More complex, showing gradual change over time