Exam 20: Speciation and Macroevolution

When the reproductive cells of different species are incompatible and cannot accomplish fertilization, it is referred to as:

Temporal and habitat isolation is classified as what type of reproductive barrier?

Alloploidy provides a mechanism for slow speciation.

Polyploidy is much more common among which type of organism?

Many new species of desert lizards have arisen from a nonnative population which was introduced into the American southwest. This example best describes:

Wings on insects, flowers on plants, and feathers on birds are all examples of variations of some preexisting structures, otherwise known as:

If a small population of mice colonizes a new area away from the range of the original species, the colony that is geographically isolated may eventually evolve into a new species. These events can be used to describe:

Differentiate between macroevolution, microevolution, and speciation.

The continued geographic isolation of Kaibab squirrels from Abert squirrels has allowed the animals to evolve into two distinct subspecies. This is an example of:

What type of organism possesses multiple sets of chromosomes from different species?

Species whose ranges overlap, but do not interbreed because they are found in different environments or areas within the range, are said to exhibit:

Which term describes new ecological opportunities that were not exploited by an ancestral organism?