evolution Flashcards
What is the process of natural selection?
Only the ‘fittest’, most well-adapted organisms survive to breed and pass on their successful genes to their offspring
A change in DNA resulting in a new form of a gene is known as a
Mutation
What does the theory of evolution state?
All species which are alive today (and those which are now extinct) evolved from the first simple life forms
What is the smallest group in the natural classification system?
Species
Darwin sailed around South America on HMS Beagle. What is the name of the famous islands where he discovered so many interesting species?
Galapagos
According to Darwin’s theory of evolution, how do new species evolve?
By natural selection
Which individuals are most likely to survive to reproduce?
Those that are well suited to their environment
What is likely to happen to an individual that is poorly suited to its environment?
It will not survive to reproduce
What sort of variation is inherited?
Genetic variation