quiz #2 Evidence of evolution/Mass Extinction

Structures that come from the same ancestor

• heterozygous structures

• homologous structures

• analogous structures

• vestigial structures

Structures that come from a different ancestor

• homozygous structures

• homologous structures

• analogous structures

• vestigial structures

An organ or bone with similar structure but different function found in different animals.

• sympatric speciation

• homologous structures

• analogous structures

• vestigial structures

Different looking structures, but similar functions

• analogous structures

• homologous structures

• vestigial structures

An anatomical feature or behavior that no longer seems to have a purpose in the current form of an organism of the given species

• analogous structure

• homologous structure

• vestigial structure

When most major animal phyla appeared due to high levels of oxygen and the rise of sea water

• Devonian Extinction

• Cretaceous Extinction

• Ordovician Extinction

• Triassic Extinction

• Cambrian Explosion

When a large portion (75%-95%)of existing species are eliminated in a short period of time

• Founders Effect

• Bottleneck Effect

• Genetic Drift

• Mass Extinction

What was the first (oldest) mass extinction?

• Ordovician

• Triassic

• Cretaceous

• Permian

• Devonian

What was the second oldest mass extinction

• Ordovician

• Permian

• Devonian

• Triassic

• Cretaceous

What was the third oldest mass extinction?

• Devonian

• Permian

• Triassic

• Cretaceous

• Ordovician