6.2 Patterns of evolution

The death of every member of a species

• The flu
• epidemic
• extinct
• population

Describes a patter of long, stable periods interrupted by brief periods of more rapid change

• convergent evolution
• coevolution
• punctuated equilibrium
• adaptive radiation

The hypothesis that evolution of a species occurs gradually over time as a slow and constant process is known as

• speciation
• punctuated equilibrium
• gradualism
• microevolution

A single species that has evolved into several different forms that live in different ways has undergone

• adaptive radiation.
• coevolution.
• punctuated equilibrium.
• mass extinction.

What is convergent evolution?

• evolution toward similar traits in unrelated species
• evolution toward different traits in closely related species
• elimination of a species from Earth
• the rise of two or more species from one existing species

Sharks and dolphins both have streamlined bodies that allow them to move through water efficiently, this is an example of which type of evolution?

• Divergent
• Coevolution
• Convergent
• Artificial

In convergent evolution, organisms share physical similarities because they 

• have a common ancestor
• live in similar environments
• develop homologous structures
• are closely related 

• Phyletic Speciation

• Adaptive Radiation

• Convergent Evoltion

• Divergent Evoltuion

• Co-evolution

The term for the formation of new and distinct species over the course of evolution is...

• speciation
• biological species concept
• reproductive barrier
• natural selection