I assume that the question here refers to the process of evolution. The "helpful variations" are small mutations that allow the organism to have a small advantage over other - and this organism can then pass this variation to its children better than other organisms, meaning that with time, more organisms will have it. This will accumulate over time and the percentage of organisms with this mutation will increase.
Answer: information processing model
Explanation:
The Information Processing Model states that middle childhood is the time children usually develop a longer attention span as their capacity to concentrate becomes stronger and much more reliable.
In middle childhood, we become capable of paying attention for much longer, and the capacity to inhibit distractions becomes better. Therefore, around that age, children grow into active learners with a better tolerate for classroom education.
Answer:
Sovereignty of the people. Government based upon consent of the governed. Majority rule. Minority rule.
Explanation:
The pillars of democracy are the essentials of every democratic government and where those pillars are absent, the government may not be able to function properly.
I think it’s the first one