The answer is "Life chances".
Life chances<span> or as it is called in German Lebenschancen refers to a social
science hypothesis of the opportunities every individual has to enhance their
personal satisfaction. The idea was presented by German humanist Max Weber. As indicated by this hypothesis, life chances
are emphatically associated with one's socioeconomic status.</span>
Over a life time of an individual intelligence tends to increase. You learn more things that will have more value then the things you learned earlier in life.
Protozoan infections are most prevalent in <u>Asia, Africa</u><u> </u>and <u>South America</u>.
Explanation:
Infections caused by protozoans in humans include severe diseases like African sleeping sickness, malaria, amoebic dysentery, giardiasis etc.
These infections are transmitted through arthropod vectors mostly through their bite. Protozoan parasitic infections are common in tropical developing countries than in the developed nations.
When travelers from non-prevalent countries like the United States travel to countries which are prone to protozoan infections, they also become susceptible and get infected when their own immune system is weakened. They become potential carriers when they travel back to their country.
Neolithic people got their food by domesticating animals to use it as food.
