Biology Topic Practice
Fossils & Extinction
Fossils are the remains of organisms from millions of years ago, which are found in rocks.
Do you know the three ways fossils are formed?
What is Fossils & Extinction?
"Fossils are the preserved remains or traces of organisms from millions of years ago, providing evidence of how life has evolved over time."
Question 1
What is extinction?
Question 2
Why is the fossil record incomplete?
Question 3
Why is the fossil record incomplete?
Fossil Records & Gaps
Fossils form from parts that haven't decayed, mineralized remains, or imprints like footprints.
Extinction can be caused by new diseases, predators, or environmental changes.
Exam Tip
The fossil record is incomplete because many early forms of life were soft-bodied and left few traces.
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