Landscape Research lists the types of migration as labor, forced, international, internal, voluntary and inter-regional migration. Animals and birds normally migrate due to changes in environmental conditions and the nee... More »

Examples of the types of human adaptation include the development of legs and feet, lactose intolerance and skin pigmentation. Each of these adaptations manifested as a result of evolution. More »

The eight types of blood are A negative, A positive, B negative, B positive, AB negative, AB positive, O negative and O positive. The type of blood a person has depends on whether or not two different antigens are presen... More »

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Polo y servicio was a practice employed by Spanish colonizers for over 250 years that required the forced labor of all Filipino males from 16 to 60 years old for 40-day periods. The workers could be placed on any project... More »

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