Answer:
- About 3.5 – 3.8 billion years of simple cells (prokaryotes).
- 3 billion years of photosynthesis.
- 2 billion years of complex cells (eukaryotes).
- 1 billion years of multicellular life.
- 600 million years of simple animals.
- 570 million years of arthropods (ancestors of insects, arachnids and crustaceans).
- 550 million years of complex animals.
- 500 million years of fish and proto-amphibians.
- 475 million years of land plants.
- 400 million years of insects and seeds.
- 360 million years of amphibians.
- 300 million years of reptiles.
- 200 million years of mammals.
- 150 million years of birds.
- 130 million years of flowers.
- 65 million years since the non-avian dinosaurs died out.
- 2.5 million years since the appearance of Homo.
- 200,000 years since the appearance of modern humans.
- 25,000 years since Neanderthals died out.
Explanation:
I hope it helps 🙂
