When Organisms Got a Nucleus
When Sexual Reproduction Occurred
When and Where the First Multi-cellular Organisms Appeared
Ice Age
100
When did the first eukaryotes evolve?
What is 2.7 billion years ago?
100
When did sexual reproduction first occur?
What is 1.2 billion years ago?
100
When did the first multi-cellular organisms appear?
What is 600 million years ago? 
100
What movie was based off this epoch?
What is Ice Age?
200
Were the first eukaryotes multi or single cellular?
What is single cellular?
200
Before sexual reproduction how did most organisms reproduce?
What is Asexual reproduction (such as budding)?
200
How many times has Multicellularity evolved independently?
What is 46 times?
200
What is the proper name of this Epoch?
What is the Pleistocene Epoch?
300
What is the advantage of having a nucleus?
What is having storage and protection of genetic code?
300
What is the advantage of sexual reproduction?
What is genetic variation?
300
Where were the first multcellular organisms fossils found?
What is in the U.S., India, and China
300
When did this epoch begin?
What is 1.8 million years ago?
400
What resulted from the evolution of the nucleus?
What is the success of Eukaryotic cells?
400
Why did sexual reproduction take so long to evolve?
What is sexual reproduction causes competition to reproduce?
400
What was the first multicellular organism shown in the fossil record?
What is Grypania spiralis?
400
Which species became extinct as result of this epoch?
What are woolly mammoths, mastodons, saber-toothed tigers and giant bears?
500
How did the nucleus form?
What is the fusion of a thermoacidophil archebacterium with a motile eubacterium?
500
What is another advantage to sexual reproduction?
What is benefits of two separate sexes compared to hermaphrodites?
500
Why was multicellularity so fragile?
What is unicellularity was much simpler and easier for survival?
500
What was a critical event of this time period?
What is the evolution and expansion of our own species, Homo sapiens?