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Card 6
Front
What can the fossil record help us to understand? Why is this understanding limited?
Back
Card 7
Front
What animal has not changed much over the last million years and why?
Back
Card 8
Front
How many species is it predicted that have existed since the beginning of life? How many are alive today?
Back
Card 9
Front
What is extinction and what causes it?
Back
Card 10
Front
What are examples of condition changes that may begin the process of extinction?
Back
Card 11
Front
When we talk about climate change, what time-frame are we talking about?
Back
Card 12
Front
How many mas-extinctions have there been throughout history?
Back
Card 13
Front
When and why did the dinosaurs become extinct?
Back
Card 14
Front
When do some UK scientists think the dinosaurs became extinct and why?
Back
Card 15
Front
What is thought to happen just after a mass extinction?
Back
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