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Early anthropologists explained incest taboos as a reflection of "instinctive horror" of mating with close relatives.However,this explanation for incest taboos has been rejected because formal incest restrictions would be unnecessary if humans really do have an instinctive aversion to incest.
O2
Symbol for oxygen, a vital element necessary for respiration in most living organisms.
Prostaglandins
Lipid compounds that have diverse hormone-like effects in animals, including mediating inflammation and pain.
Surfactant
A substance that reduces surface tension, allowing for the easier exchange of gases in the lungs and preventing alveolar collapse.
Manufacturing Firms
Companies that produce and sell goods using raw materials, labor, and machinery.
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