Answer: Geology played a major role in Darwin's life and scientific work: The formation of volcanoes, the slow subsidence of coral reefs, the rising of the Andes by earthquakes, the fossil relatives to modern species in South America,
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The conversion of nitrogen gas (N2) into nitrates and nitrites through atmospheric, industrial and biological processes is called nitrogen fixation. Atmospheric nitrogen must be processed, or "fixed", into a usable form to be taken up by plants. Between 5 and 10 billion kg per year are fixed by lightning strikes, but most fixation is done by free-living or symbiotic bacteria known as diazotrophs. These bacteria have the nitrogenase enzyme that combines gaseous nitrogen with hydrogen to produce ammonia, which is converted by the bacteria into other organic compounds. Most biological nitrogen fixation occurs by the activity of Mo-nitrogenase, found in a wide variety of bacteria and some Archaea. Mo-nitrogenase is a complex two-component enzyme that has multiple metal-containing prosthetic groups.[22] An example of free-living bacteria is Azotobacter. Symbiotic nitrogen-fixing bacteria such as Rhizobium usually live in the root nodules of legumes (such as peas, alfalfa, and locust trees). Here they form a mutualistic relationship with the plant, producing ammonia in exchange for carbohydrates. Because of this relationship, legumes will often increase the nitrogen content of nitrogen-poor soils. A few non-legumes can also form such symbioses.
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Dr. Garcia’s emphasis best illustrates Biopsychosocial approach.
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- It is an interdisciplinary model that looks at the interconnection between biology, psychology, and socio-environmental factors and their effects on individuals.
- It was developed by George L. Engel in 1977 and it was first of its kind that employed such diverse thinking.
- This model displays the development of illness through the complex interaction of biological, psychological, and social factors.
- This approach reopened new pathways for the idea of mind-body dualism which forgotten during the biomedical approach.
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HOW DARE YOU DELETE MY ANSWER
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Sleet can be mixed with snow or rain. It is also more icy