Macroevolution Flashcards
(7 cards)
1
Q
Macroevolution:
A
large-scale evolutionary changes
2
Q
Abiogenesis
A
The origin of life from non living matter
3
Q
Cambrian Explosion:
A
the rapid evolution of most major animal phyla that took place during the Cambrian period
4
Q
how is diversity effected by mass extinctions
A
Increases in diversity are interrupted by mass extinction events
Caused by cataclysmic events like tectonic movements, volcanoes, rapid climate change
5
Q
Theory of Gradualism:
A
species gradually become more distinctive as they evolve
6
Q
Transitional Form:
A
organisms intermediate in form between their modern forms and their ancient relatives.
like skulls
7
Q
Theory of Punctuated Equilibrium:
A
the process of evolution is slow, but occasionally punctuated by periods of rapid change
