I believe the answer is: brain changes that greatly improve dexterity
As we are conditioning ourselves to do something with a certain part of our body, our brain would eventually improve and adjust itself to make us able to do that thing better, even on automatic function. The same thing happen to soccer youths who are continuously trained to use both of their leg to make a maneuver ever since they're little.
<span>He buys a new sports car every year, lives in the biggest house in his neighborhood, and always buys the most expensive clothes he can find. According to ... Failure to resolve conflict at a particular stage of psychosexual development may lead to failure to move forward psychologically, a phenomenon that Freud called</span><span>
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Answer:
Fertility is the incidence of childbearing in a country's population.
Demographers describe fertility using the crude birth rate .
To generate natural energy that's cheaper and more reliable
