AP Bio - Ch. 24

Front

What is sympatric speciation?

Back

A type of speciation where new species evolve from a single ancestral species while inhabiting the same geographic region.

Front

What is allopatric speciation?

Back

A type of speciation that occurs when populations are geographically isolated from each other, preventing interbreeding.

Front

What is reproductive isolation?

Back

A condition in which two populations can no longer interbreed and produce fertile offspring, leading to speciation.

Front

What role does geographic isolation play in speciation?

Back

Geographic isolation can lead to speciation by preventing gene flow between populations, allowing them to evolve independently.

Front

What are selection pressures?

Back

Environmental factors that influence which individuals in a population are most likely to survive and reproduce.

Front

What is the difference between sympatric and allopatric speciation?

Back

Sympatric speciation occurs without geographic barriers, while allopatric speciation occurs due to physical separation.

Front

What is an example of sympatric speciation?

Back

The divergence of a population of orcas that develop different courtship rituals and social structures within the same habitat.

Front

What is convergent evolution?

Back

The process where unrelated species evolve similar traits due to similar environmental pressures.

Front

What is divergent evolution?

Back

The process where two or more related species become more dissimilar over time, often due to different environments.

Front

What is analogous structure?

Back

Body parts in different species that have similar functions but evolved independently, not from a common ancestor.