Question 46 2 pts The arrival of the ancestral finch species from mainland South America to the Galapagos Islands and have since evolved/speciated into 13 different species of finches on the islands would be an example of: gene flow founder effect mutations bottleneck effect inbreeding
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The question is about the arrival of an ancestral finch species from mainland South America to the Galapagos Islands and its subsequent evolution into 13 different species of finches on the islands. Show more…
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26. A small group of birds leave the mainland to colonize a new island that has not been colonized by birds before. After several generations, the gene sequences between the birds on the island and those of their parent population on the mainland are compared. It is found that the island bird population's allele frequencies at many gene loci differ greatly from the mainland bird population's allele frequencies. Which of the following likely explains the genetic uniqueness of the island bird population? a. Founder effect and natural selection b. Bottleneck effect and Hardy-Weinberg equilibrium c. Mutation and sexual selection d. Gene flow and balancing selection
Sukhada S.
There are thirteen species of finch found on the Galapagos Islands. These finches are commonly referred to as "Darwin's Finches" and are a common example of natural selection and adaptive radiation. Which question would MOST help a scientist determine the level of biodiversity that exists among the thirteen species of finch on the Galapagos Islands? What is the most common beak color among the finches? How many finches are more than five years old? Which species of finch has the greatest average mass? What variation exists between the species for traits like beak size and shape?
Sri K.
13. Put the following events in the evolution of the finches in order. Write the letters in the correct order in the spaces below. (4) Write the order of the events here | Events of finch evolution ---|--- | The different environments on the islands allowed finches with different characteristics in beak size to survive and reproduce over other finches. | A population of finches from the mainland arrived on the closest Galapagos Island | The finches only breed with individuals with similar beak size and song, so eventually the different kinds of finches became different species | The first population spread out onto the neighbouring islands
Adi S.
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