CAS BI 107 Study Guide - Quiz Guide: Settling, Hemoglobin, Chemical Waste
22 May 2017
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Increasing use of pesticides, fertilizers and herbicides levels of nutrients in the soil, kill insect pests, kill weeds crop yields. Use of modern machinery (tractors, combined harvesters) manage land and crop more efficiently. Artificial selection to produce varieties of plants suited to particular climates and soil types, and breeds of animal for specific purposes (optimum meat, milk, wool production). Use of yeast and bacteria in the large-scale production of breads, beer and wine, yoghurt and cheese. Single-cell protein and fungi are used to produce meat substitutes. Use of medicines such as antibiotics, hormones and artificial insemination techniques in intensive animal rearing. Use of plant hormones in plant growing and fruit production. Use of genetic engineering and cloning techniques to produce organisms to produce hormones . Development of systems to water plants in greenhouses automatically and to grow plants in nutrient solutions (hydroponics). Use of satellites to monitor crop development, observe crop diseases and assess the need for additional fertilizer.
