Explore Evolution: Fossils Flashcards
1
Q
The meanings of Evolution
A
#1 Change over time #2 Universal Common Descent #3 Mechanism of Change: Natural Selection acting on random chance
2
Q
How we explore the history of life:
A
Draw conclusions about past events based on present facts and compare competing theories
3
Q
What is a fossil?
A
Remains of an organism preserved in sediment
4
Q
Cambrian explosion
A
Sudden appearance of most animal body plans (phyla) in the fossil record during the Cambrian period of geologic time
