<span>Population size is closely linked to its rate of change. If the population is below the threshold for the resources available, it will increase in size ... The more distance between the actual size and the threshold, the greater the rate of increase. If the population is above its threshold, it will start to decrease in size. The threshold will be the equilibrium position so it will tend to wave up and down until it gets to the equilibrium. The reason real life populations don't do this is because the resources are changing all the time so the equilibrium is a moving target.</span>
A. manage and control people.
The answer is less and more (respectively).
To complete the sentence and to get the idea of the phrase:
They became less likely to under-perform on aptitude tests and more likely to become aggressive toward those who had insulted them.
Answer:
Most deaths in the Civil War were the result of non-combat-related disease. For every three soldiers killed in battle, five more died of disease.
