Speciation

Biology ⇒ Evolution and Diversity

Speciation starts at 9 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Speciation. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 12

Describe how behavioral isolation can contribute to speciation.

Describe how ecological niches can drive speciation.

Describe how founder effect can contribute to speciation.

Describe how sexual selection can contribute to sympatric speciation.

Describe the concept of adaptive radiation and its relationship to speciation.

Describe the difference between prezygotic and postzygotic barriers in speciation.

Describe the process of hybrid breakdown as a postzygotic barrier.

Explain how habitat isolation can lead to speciation.

Explain how polyploidy can lead to speciation in plants.

Explain the concept of reinforcement in the context of speciation.

Explain the difference between microevolution and macroevolution in the context of speciation.

Explain the role of genetic drift in speciation.

Explain the role of natural selection in the process of speciation.

What is the main difference between allopatric and sympatric speciation?

A population of insects is split by the construction of a highway, resulting in two groups that cannot cross to interbreed. Over several generations, one group evolves resistance to a pesticide while the other does not. Explain how this scenario could lead to speciation, and identify the type of speciation involved.

A researcher observes that two populations of frogs living in adjacent but slightly different habitats have developed distinct mating calls. Occasionally, individuals from the two populations interbreed, but the resulting hybrids have lower fitness. What evolutionary process is likely occurring, and what is the expected long-term outcome?

Describe how the concept of reproductive character displacement can contribute to the completion of speciation between two closely related populations.

Explain how hybrid zones can provide evidence for the process of speciation, and describe what outcomes are possible for populations in a hybrid zone.