Bio 121 Exam 3 Miami Questions with 100% Correct Answers

Food Security Correct Answer adequate, safe, nutritious Greatest Challenge coming up 925 million Correct Answer people in the world suffer from undernutrition 60%; 25% Correct Answer Overweight; obese Malnutrution Correct Answer shortage of nutrient the body needs, occurs when a person fails to obtain a complete complement of vitamins and minerals 38% of earths surface land Correct Answer agriculture covers 26% is rangeland Correct Answer 12% is cropland Human and muscle power, hand tools and simple machines Correct Answer traditional agriculture Machines, faster and more powerful Correct Answer Industrial Agriculture Boosted yield Correct Answer intensifying irrigation and synthetic fetrilizers Single Crops in orderly straight rows Correct Answer Monocultures Boosted production and exported industrial agricultural Correct Answer Green Revolution Negative of Green Revolution Correct Answer intensive water application, fossil fuels, inorganic fertilizers and synthetic pesticides Rock organic matter, water, gases, nutrients, and microorganisms Correct Answer Soils Layers or ______ are a soil profile Correct Answer Horizons Soil Profile Correct Answer Degree of weathering and the concentration of organic matter decreases as one moves downward Minerals are usually transported Correct Answer downward Mostly inorganic mineral components such as weathered substrate with organic matter and humus from above is mixed in Correct Answer Topsoil- most nutritive for plants