Natural Selection Flashcards
What is evolution?
Gradual change open the characteristics of a species over time
What did humans (homosapiens) evolve from?
Apes
An example of evidence of evolution..
Adaptations between fossils
What’s a fossil?
Remains of an organism found in rock.
How can the remains be preserved?
Through ice
Tree sap hardening
What happens to the bones of dead animals
Washed away through ground water
How can fossils rise from deep within the earths crust?
Through earthquakes
Mountains rising naturally
Simplest fossils are found in the_____ rock
In the oldest rock
How are fossils useful ?
They provide a snapshot of what an organism looked like
How do fossils support the theory of evolution?
Older fossils are found in older rock, newer fossils are found in newer rock,we can see the changes through the change in rock
What was Darwin’s theory of evolution?
Organisms best adapted for their environment will survive and pass on their characteristics.
What is classification?
Grouping of organism based on similarities of features
What’s artificial classification?
Classification based on observable features
E.g hair colour, beak shape
What’s natural classification?
Grouping of organisms based on links in evolution.
Who developed the first classification system 250 years ago
Carl Linnaues
