What promotes sympatric speciation?
Summary. Three types of genes have been proposed to promote sympatric speciation: habitat preference genes, assortative mating genes and habitat-based fitness genes. However, ‘nonhabitat assortative mating’, when coupled with habitat preference can eliminate this interbreeding.
Which of the following is a likely cause of sympatric speciation?
The correct answer is (d) sexual selection. Sympatric speciation occurs when one species becomes two different species without any geographic or…
What causes sympatric speciation quizlet?
Sympatric speciation happens when geography does not isolate organisms from each other. reproductive barriers are at the root of the differences that arise between populations (pop. same species in same area).
What are the 3 causes of speciation?
Scientists think that geographic isolation is a common way for the process of speciation to begin: rivers change course, mountains rise, continents drift, organisms migrate, and what was once a continuous population is divided into two or more smaller populations.
What is sympatric speciation example?
The theory is that some individuals become dependent on certain aspects of an environment—such as shelter or food sources—while others do not. A possible example of sympatric speciation is the apple maggot, an insect that lays its eggs inside the fruit of an apple, causing it to rot.
What would be an example of sympatric speciation quizlet?
Some animals and plants appear to have diverged while living side by side—a process called sympatric speciation. One of the best examples of sympatric speciation can be found in Lake Apoyo, which formed a crater of an extinct volcano in Nicaragua.
What is the main characteristic of sympatric speciation quizlet?
Sympatric speciation occurs in situations where the populations undergoing speciation are not isolated by a geographic barrier. The two or more species produced by sympatric speciation overlap in their geographic ranges. Reproductive isolation prevents interbreeding even though there is opportunity to freely mate.
What is the main cause of speciation?
Speciation can be driven by evolution, which is a process that results in the accumulation of many small genetic changes called mutations in a population over a long period of time. Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation.