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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 .
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]
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 ...
Animals require complex nutrients such as carbohydrates, lipids, and proteins, obtaining them by consuming other organisms. Humans have developed agriculture and cooking to replace foraging and advance human nutrition. Plants acquire nutrients through the soil and the atmosphere.
Many plants and animals have coevolved in such a way that the fruit is a good source of nutrition to the animal who then excretes the seeds some distance away, allowing greater dispersal. [59] Even seed predation can be mutually beneficial, as some seeds can survive the digestion process.
In today's puzzle, there are seven theme words to find (including the spangram). Hint: The first one can be found in the top-half of the board. Here are the first two letters for each word:
Natural resource management is a discipline in the management of natural resources such as land, water, soil, plants, and animals—with a particular focus on how management affects quality of life for present and future generations. Hence, sustainable development is followed according to the judicious use of resources to supply present and ...
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