Like all flowering plants, the snapdragon must be pollinated to reproduce, but its flowers are closed. A bumblebee has just enough weight to open a snapdragon flower by landing on it. This adaptation is an example of

EVOLUTION OF A POPULATION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	convergent evolution
B	coevolution
C	divergent evolution
D	speciation

Explanation:

Detailed explanation-1: -Extinction is the dying out of a species. Extinction plays an important role in the evolution of life because it opens up opportunities for new species to emerge.

Detailed explanation-2: -The type of selection most likely to increase variation is disruptive (or diversifying) selection, which occurs when two or more pheno-types are fitter than the intermediate phenotypes that lie between them.

Detailed explanation-3: -Correct answer: Explanation: Genetic drift occurs when the frequency of alleles in a population change by random chance. Change in allele frequency based on biological fitness is natural selection, not genetic drift.

Detailed explanation-4: -The bottleneck effect occurs when a population’s size is reduced for at least one generation. Undergoing a bottleneck can greatly reduce the genetic variation in a population, leaving it more susceptible to extinction if it is unable to adapt to climactic changes or changes in resource availablility.

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