Evidence for Evolution (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
Scientist who proposed evolution by natural selection
Scientist who proposed evolution by natural selection
Charles Darwin
What fossils are
What fossils are
Preserved remains or traces of organisms
How old are fossils?
How old are fossils?
Millions of years old
Where fossils are found
Where fossils are found
In layers of rock
What fossils provide
What fossils provide
Historical record of life on Earth
What fossils show about species
What fossils show about species
Species have gradually changed over time
What transitional forms illustrate
What transitional forms illustrate
Gradual process of evolution
What causes antibiotic resistance
What causes antibiotic resistance
Selective pressure from antibiotics
What leads to resistance in bacteria
What leads to resistance in bacteria
Mutations in bacterial DNA
What resistant bacteria do when antibiotics are present
What resistant bacteria do when antibiotics are present
Survive and reproduce
What happens to resistant strains over time
What happens to resistant strains over time
Become more common
What antibiotic resistance provides as evidence
What antibiotic resistance provides as evidence
Real-time example of natural selection