Through the progress of natural selection, a variation, which provides a advantage will become
A. More common in a population
B. Less common in a population
C. More common in an individual
D. Less common in an individual
5 answers
A. More common in a population.
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There is a population of birds that differ in feather, color, and in diet. The green feathered birds, eat fish, while red feathered birds eat insects. A drop hits the rabbits of this population. The drought has no effect on the insect population, but it dries up the pounds and the fish pound population decline. The main selective presser for the birds in this scenario is.
The main selective pressure for the birds in this scenario would be the decline in the fish population due to the drought. Since green-feathered birds mainly eat fish, this decline in the fish population would put them under pressure to adapt to a different diet or face a potential disadvantage in survival. On the other hand, red-feathered birds that mainly eat insects would not be affected as much, as their food source is not directly impacted by the drought. Therefore, natural selection could favor a shift in the population towards more red-feathered birds, which can survive on insects, and fewer green-feathered birds that rely on fish.
4 answers