Evolution by Natural Selection (Grade 12 NSC Matric Life Sciences): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Evolution definition
Evolution definition
Transformation through time
Biological evolution
Biological evolution
Heritable genetic changes in populations over generations
Theory vs hypothesis difference
Theory vs hypothesis difference
Theory: tested & supported. Hypothesis: needs testing
Location of oldest fossils
Location of oldest fossils
Deepest, oldest geological formations
Biogeography in similar environments
Biogeography in similar environments
Species share common characteristics
Genetic similarity in closely related species
Genetic similarity in closely related species
Greater than in distantly related species
Crossing over function
Crossing over function
Creates new gene combinations during meiosis
How mutations contribute to evolution
How mutations contribute to evolution
Introduce new traits passed to future generations
Charles Darwin's famous book
Charles Darwin's famous book
The Origin of Species
Main sources of variation in populations
Main sources of variation in populations
Meiosis, random fertilisation, mating, mutations