The History of Life on Earth Earth – 4.6 BYA Prokaryotes – 3.8 BYA Eukaryotes – 2.0 BYA First Animals – 635 MYA
Stanley Miller Experiment Origins of Life
Domains
Domains vs. Kingdoms Kingdoms Based on Cellular information Domains Based on Molecular information
Domain: Bacteria
Domain: Archaea Carl Woese – Prokaryotic cell but similar to Eukaryotes in DNA replication and Protein synthesis
Domain: Eukarya Protista – kingdom divided into many different kingdoms
“Kingdom” - Protista
Kingdom: Plantae
Charophytes
Division: Bryophyta
Division: Pterophyta
Gymnosperms
Angiosperms
Kingdom: Fungi
Kingdom: Animalia
Phylum: Arthropoda
Animals Move onto Land Lungs Limbs
Animals Move onto Land Tiktaalik
Amniotic Egg
Class: Reptilia
Class: Aves
Class: Mammalia Monotremes Marsupials Placental
Class: Mammalia Primates
Class: Mammalia
Early hominid? (6-7 mya)
Class: Mammalia Early hominids Lucy (3 mya) H. ergaster (1.7 mya) – human ancestor Neantherthal – Lived with modern humans???
Modern Humans 40,000 years ago