evolution

when did the earth begin

• 5 billion years ago

• 100,000 years ago

• 6 billion years ago

• 4.5 billion years ago

what was the first life form on earth?

• prokaryotes

• plants

• dinos

• insects

when did eukaryotes appear?

• 1 million years ago

• 3.5 billion years ago

• 4 billion years ago

• 1.5 billion years ago

when did the first animals appear?

• 800 million years ago

• 900 million years ago

• 1 billion years ago

• 700 million years ago

when did land plants evolve?

• 3 billion years ago

• 10,000 years ago

• 500 million years ago

• 650 million years ago

when did vertebrates appear?

• 300 million years ago

• 700 years ago

• 500 million years ago

• 2 billion years ago

when did dinosaurs evolve?

• 213 million years ago

• 1.5 billion years ago

• 2 billion years ago

• 600 million years ago

when did insects evolve?

• 200 million years ago

• 385 million years ago

• 300 million years ago

• 700,000 years ago

when did dinosaurs go extinct

• 500 years ago

• 100,570 years ago

• 65 million years ago

• 900 million years ago

when did modern humans evolve?

• 300,000 years ago

• 4,000 years ago

• 700 years ago

• 800 years ago