Exam 3: Natural Selection, Speciation, and Extinction

North America is considered part of which realm?

Tapirs are currently found in:

A common, long-lived parrot, with good dispersal ability lives in the forests of Puerto Rico. It has high reproductive ability and high population variability. Which of the following species characteristics threaten it with extinction?

Which present day land mass did not make up part of Gondwanaland?

Sympatric speciation has only been proposed for plants.

The idea that, in an ever changing world, species must continually evolve and change in order not to go extinct has been called:

Which is not a possible mechanism for allopatric speciation?

What is not a recognized pattern of natural selection?

The biological species concept is applicable to asexually reproducing species such as bacteria.

According to the evolutionary species concept how many differences in a DNA sequence is sufficient to separate groups into species?

The tendency for animals to become larger over evolutionary time is known as _______rule.

Generally, rare species are more prone to extinction than common species.