Evolutionary Patterns and Processes

The emergence, growth, and extinction of larger clades, such as dinosaurs, mammals, or flowering plants, are examples of

Rates of

In

Darwin suggested that evolution proceeded slowly and steadily, an idea called

Now and then, the fossil record shows that equilibrium can be interupted by breif periods of geologically rapid change. This pattern is called ___________ _____________.

_________ _________ may occur when species migrate to new environments or when extinction eliminated competing species.

The appearance of similar characteristics in unrelated organisms is known as _____________ _____________.

The process by which two species evolve in response to changes in each other over time is called