Classification of Living Organisms (AQA GCSE Biology): Flashcards
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Definition of evolutionary tree
Definition of evolutionary tree
Diagram showing how different species are related through evolution
Scientist who created three-domain system (year)
Scientist who created three-domain system (year)
Carl Woese (1977)
The three domains of life
The three domains of life
Eukaryota, Bacteria, Archaea
What Eukaryota includes
What Eukaryota includes
Plants, animals, fungi, protists
Key feature of Eukaryota cells
Key feature of Eukaryota cells
Cells have a nucleus
What Archaea are
What Archaea are
Primitive bacteria living in extreme places
Where Archaea are found
Where Archaea are found
Very hot or very salty environments
What cyanobacteria can do
What cyanobacteria can do
Photosynthesis
Linnaean system starting kingdoms
Linnaean system starting kingdoms
Two kingdoms (plants and animals)
What branching points on evolutionary trees show
What branching points on evolutionary trees show
A common ancestor
Species that branch off later are...
Species that branch off later are...
Descendants of earlier species
Two types of evidence for evolutionary trees
Two types of evidence for evolutionary trees
Fossil data and modern classification (DNA) data
What fossil data shows
What fossil data shows
Relationships between extinct species & when they lived
What DNA analysis reveals
What DNA analysis reveals
How closely related current organisms are
Why is DNA analysis better than physical features?
Why is DNA analysis better than physical features?
Reveals relationships not obvious from appearance