Which of the following could cause sympatric speciation?
Sympatric speciation occurs when populations of a species that share the same habitat become reproductively isolated from each other. This speciation phenomenon most commonly occurs through polyploidy, in which an offspring or group of offspring will be produced with twice the normal number of chromosomes.
What hypothesis did the researchers test in this study dusky salamanders?
What hypothesis did the researchers test in this study? Reproductive isolation increases with geographic distance between dusky salamander populations.
Which of the following would most likely cause sympatric speciation?
The correct answer is (d) sexual selection. Sympatric speciation occurs when one species becomes two different species without any geographic or…
Which of the following are necessary for speciation to occur?
For speciation to occur, two new populations must be formed from one original population, and they must evolve in such a way that it becomes impossible for individuals from the two new populations to interbreed.
What are some examples of sympatric speciation?
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.
Does distance between salamander populations increase their reproductive isolation?
Reproductive isolation increases with geographic distance between dusky salamander populations.
What is genetic drift quizlet Chapter 24?
a set of organisms with a unique genetic history. What is genetic drift? A change in allele frequencies caused by random events.
What are the results of sympatric speciation?
Sympatric speciation is distinctive as it occurs when two populations of the same species are found in the same territory but are able to split into two different groups and genetically develop so differently that they can no more interbreed and become different species.
What prevents speciation from occurring in sympatric populations?
Interbreeding prevents speciation from occuring in sympatric populations. Sympatric populations are groups of organisms that live in the same area. If these populations continue to interbreed, or mate, they can stay within the same species.
What is speciation give an example?
Speciation is how a new kind of plant or animal species is created. An example of speciation is the Galápagos finch. Different species of these birds live on different islands in the Galápagos archipelago, located in the Pacific Ocean off South America. The finches are isolated from one another by the ocean.