I believe the answer is: <span>biological preparedness
</span><span>biological preparedness refers to the idea that all organisms are genetically inclined to form an association between a stimulus and the condition that it cause. This inclination would shape the organisms' behavior to avoid an undesired condition that would harm us.
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The death of infants are referred to as infant mortality ( So you can say for example "Infant mortality is a big problem for some countries) and the number of such deaths per 1000 births is called the infant mortality rate.
The infant mortality rate is very high for example in Africa and in India
The Olmecs used the stars as a natural navigation system, they were orienting in space according to their alignment. So when they were building their cities, they were aligning them according to the positions/paths of the stars, so it was very easy for them to now the traces between the cities, as well as their positions, from wherever you were in the empire.