Front

Organism type of the Ordovician period?

Back

Marine

Front

Trilobites existed in the Ordovician period.

Back

Yes

Front

Percentage of organisms extinct during the Ordovician-Silurian extinction?

Back

86%

Front

Devonian period:

Back

Age of the Fish

Front

Great Dying extinction?

Back

Permian-Trassic

Front

Mass extinction occurs when multiple species globally go extinct suddenly.

Back

Correct Answer: When multiple species from all over the earth suddenly go extinct.

Front

Largest mass extinction: 96% of species vanished.

Back

Permian Extinction

Front

Cause of the Permian-Triassic extinction?

Back

Volcanic Eruption

Front

Triassic-Jurassic extinction led to:

Back

Dinosaurs ruling the next period.

Front

Cretaceous–Paleogene extinction allowed small mammals to thrive because dinosaurs went extinct.

Back

Correct Answer: Dinosaurs went extinct.