Which of the Following Is an Example of Sympatric Speciation

question 25

Multiple Choice

Which of the following is an example of sympatric speciation?

• A) two populations of salamanders that live on isolated islands and eventually become separate species, unable to interbreed
• B) different breeds of dogs that live in different areas of the world but are able to produce fertile offspring
• C) a horse and a donkey that may interbreed to produce a mule that is sterile and unable to reproduce
• D) two related plant species living in the same area that hybridize, then undergo chromosome doubling, which results in the creation of a third species of plant that is unable to reproduce with either of the two original species
• E) three species that evolve from a common ancestral species due to reproductive isolation and adaptation to different habitats Sympatric speciation refers to populations that develop into two or more new species without prior geographic isolation. Hybridization followed by polyploidy in plants is an excellent example of this type of speciation mechanism.

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Definitions:

Hair Cells

Sensory cells located in the inner ear that are essential for hearing and balance, converting mechanical sound vibrations into nerve impulses.

Frequency Theory

A theory about how sounds are transmitted and interpreted, stating that the frequency of auditory nerve impulses matches the frequency of the tone, enabling us to detect pitch.

Hertz

A unit of frequency in the International System of Units (SI), denoting one cycle per second.

Place Theory

A proposal about pitch perception stating that regions of the basilar membrane respond to particular sound frequencies, and the nervous system interprets the excitation from different basilar regions as different pitches.