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The human population exploits and depends on many animal and plant species for food, mainly through agriculture, but also by exploiting wild populations, notably of marine fish. [ 10 ] [ 11 ] [ 12 ] Livestock animals are raised for meat across the world; they include (2011) around 1.4 billion cattle , 1.2 billion sheep and 1 billion domestic pigs .
In addition to basic needs, humans also have needs of a social or societal nature such as the human need for purpose, to socialize, to belong to a family or community or other group. Needs can be objective and physical, such as the need for food, or psychical and subjective, such as the need for self-esteem. Understanding both kinds of "unmet ...
The "basic needs" approach was introduced by the International Labour Organization's World Employment Conference in 1976. [1] [2] "Perhaps the high point of the WEP was the World Employment Conference of 1976, which proposed the satisfaction of basic human needs as the overriding objective of national and international development policy. The ...
Maslow’s hierarchy of needs is a conceptualisation of the needs (or goals) that motivate human behaviour, which was proposed by the American psychologist Abraham Maslow. [ 1 ] [ 2 ] According to Maslow’s original formulation, there are five sets of basic needs that are related to each other in a hierarchy of prepotency (or strength).
The human population exploits a large number of non-human animal species for food, both of domesticated livestock species in animal husbandry and, mainly at sea, by hunting wild species. [ 6 ] [ 7 ] Marine fish of many species, such as herring , cod , tuna , mackerel and anchovy , are caught and killed commercially, and can form an important ...
Most human plant-based food calories come from maize, rice, and wheat. [12] Plants can be processed into bread, pasta, cereals, juices and jams, or raw ingredients such as sugar, herbs, spices and oils can be extracted. [13] Oilseeds are often pressed to produce rich oils: sunflower, flaxseed, rapeseed (including canola oil) and sesame. [14]
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Human uses of plants include both practical uses, such as for food, clothing, and medicine, and symbolic uses, such as in art, mythology and literature. Materials derived from plants are collectively called plant products .