Genetic drift, the founder principle, and the bottleneck effect all occur under what conditions? A)
in small populations when one genetic trait becomes more common in a population purely by chance
B)
in small populations and result in a decrease in genetic diversity and/or an increase in the occurrence of specific genetic traits
C)
when a small group of organisms only reproduce with each other to create a larger population of organisms
D)
when the majority of a population is decimated and there are only a few remaining organisms left to rebuild the population

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Like many students at university, you may be unhappy about the results you attain in exams. you may feel that even with all you are doing there must be something more -- or different-- you could be doing to get better grades. we have all at some time or other heard of that student who only studies a couple of hours for final exams and scores a's every time. we stand in awe of those who seem to breeze through without undue effort and seem to need very little in the way of studying to nail an exam. the reasons for success, in what i think are the vast majority of cases, are less esoteric than many students think: successful students consistently apply a series of productive strategies with view to attaining clearly identified learning and grade goals throughout the academic term.

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