What is the driving force that splits the supercontinent?
Why isn’t the sun’s heat trapp...
What is the driving force that splits the supercontinent?
Why isn’t the sun’s heat trapped inside the planet’s atmosphere?
What is the nickname of Earth during this ice age?
What releases the Earth from this very long frozen period?
What oxygen-rich chemical does the chemical reaction between ultraviolet light and ice make?
What did primitive bacteria evolve into?
What is the Cambrian explosion?
What are some examples of living organisms around during the Cambrian explosion?
What is special about Pikaia?
Why is Tiktaliik special?
What organism do all 4-legged vertebrates come from?
What type of organisms do Meganeura represent?
Millipedes, spiders, and insects are called
Why is the egg an evolutionary breakthrough?
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