What might prevent two adjacent populations of a species from diverging? A.If th
ID: 236436 • Letter: W
Question
What might prevent two adjacent populations of a species from diverging?
A.If there is migration between populations, but no exchange of genetic material
B. If there is no migration
C. If there are reciprocal transplants
D. If there is migration between populations, and an exchange of genetic material E.If there is natural selection against hybrids where the two populations overlap.
In response to varying environmental conditions, the average beak size/shape in a population of seed-eating finches may change seasonally, and from one generation to the next. Of the processes listed below, which best explains how this phenomenon might occur?
A. differential survival and reproduction alone B.genetic drift
C. speciation
D. stabilizing selection
E. directional selection
What might prevent two adjacent populations of a species from diverging?
A.If there is migration between populations, but no exchange of genetic material
B. If there is no migration
C. If there are reciprocal transplants
D. If there is migration between populations, and an exchange of genetic material E.If there is natural selection against hybrids where the two populations overlap.
In response to varying environmental conditions, the average beak size/shape in a population of seed-eating finches may change seasonally, and from one generation to the next. Of the processes listed below, which best explains how this phenomenon might occur?
A. differential survival and reproduction alone B.genetic drift
C. speciation
D. stabilizing selection
E. directional selection
Explanation / Answer
Answer of part A) The only thing which causes divergent in species is the transfer of genes. Therefore, exchange between the genetic material should not be done between any two species to prevent species divergence.However, the migration of species would not affect any genetic material. Hence, option 1 is correct.
Answer of part B) For this part option E (directional selection) would be correct. Because, it is the phenomenon by which evolution takes place in the parts to body of species to adapt present environmental conditions for making their survival easier.
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