Speciation Notes & Concept Check

Multiple Choice

What is speciation?

• Speciation is the process by which populations become extinct.

• Speciation is the evolutionary process by which new species are created.

• Speciation is the process of organisms adapting to their environment.

• Speciation is the process by which organisms migrate to new areas.

Multiple Choice

These birds live close together and look similar. However, they do not reproduce together because one population has a courting dance to attract mates and the other does a pointing display.

Are they the same species?

• No, because they do not interbreed.

• Yes, because they live in the same place.

• Yes, because they look alike.

• Not enough information.

Open Ended

Explain how separation within a species can lead to the development of unique characteristics and traits.

Multiple Choice

Which of the following are necessary conditions for allopatric speciation to occur?

• Populations must be split geographically by a physical barrier.

• Populations must be able to breed freely.

• Populations must remain in the same geographic region.

• Populations must have identical genetic traits.

Multiple Choice

A population of squirrels becomes separated by a canyon and can no longer breed with other members of the population. Which type of speciation is this?

• Sympatric speciation

• Peripatric speciation

• Artificial selection

• Allopatric speciation

Multiple Choice

The founder effect and bottleneck effect are both examples of ___ speciation.

• Peripatric

• Allopatric

• Sympatic

• Artificial

Multiple Choice

One day a group of scientists collected a small group of green anole lizards from a large population of lizards.  Then they placed this small group of lizards on an island that had no green anole lizards on it.  What is this an example of?

• Bottleneck Effect
• Immigration
• Speciation
• Founder Effect

Multiple Choice

Which situation is an example of the bottleneck effect?

• A small group of birds leaves the main population and starts a new population on a nearby island.

• A flood suddenly kills most members of a population, leaving only a few survivors.

• Two populations become separated by a mountain range and can no longer interbreed.

• A population adapts to a new food source over time.

Multiple Choice

Which statement best describes sympatric speciation?

• It occurs when populations are separated by physical barriers.

• It happens when populations migrate to different regions.

• It occurs within the same geographic area, without physical separation.

• It always involves natural disasters.

Multiple Choice

A population of apple maggot flies lived in the same geographic area. Some flies began laying eggs on apple trees, while others laid eggs on hawthorn trees. Over time, the two groups stopped mating with each other even though they lived in the same area. What is this an example of?

• Allopatric speciation

• Peripatric speciation

• Sympatric speciation

• Bottleneck effect