ENV100Y5 Lecture Notes - Lecture 23: Crop Yield, Feedlot, Plant Breeding

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maroonmink315

2 Feb 2017

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In canada, 48% of adults exceed their healthy weight and 14% are obese: calorie gap between rich and poor, as the rich have all of the food while the poor have a small fraction of it. Diseases of malnutrition: marasmus: severe deficit of energy, protein and carbohydrates, kwashiorkor: protein and micronutrient deficiency, diabetes, heart disease, obesity: excess fats, carbohydrates, calories, asia and africa are the continents with the highest levels of undernourishment and poverity. Why can"t we feed everyone: farmers today produce more than enough calories to feed everyone. Food security is constrained by the 5 a"s : availability (production, adequacy (quality, accessibility (storage; distribution infrastructure; civil unrest; social status, affordability (ability to import, buy, produce, subsidize, acceptability (cultural, religious) Agriculture post wwii: cheap energy, mechanization (tractors, combines; can work larger fields, large-scale irrigation (can farm marginal land) Inorganic fertilizers (byproducts of oil industry: knowledge of plant breeding (can breed high-yield, disease resistant crops)

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PLEASE ANSWER ALL QUESTIONS.

QUESTION 1 The nutrition transition is driven by three major ecologic factors; demographics, urbanization and changes in a.Longevity b.Standard or living c. Dietary trends

QUESTION 2 The dual burden of populations in nutrition transition refers to finding obesity and ________ coexisting within the same household a.Overnutrition b.Undernutrition c. sedentary lifestyle d.None of the above

QUESTION 3 Following the global financial crisis of 2008, which of the following occurred that left the poor and undernourished populations less food secure that they were earlier in the decade a.Crop diversion for biofuel production b.Restrictive trade policies c.Surging oil prices d.All of the above

QUESTION 4 The Barker hypothesis proposes that under nutrition at different phases of intrauterine and postnatal growth results in an increased risk for a.Kidney disease b.Type 2 diabetes c.Liver disease d.Osteoporosis

QUESTION 5 According to Merson, South Korea has retained elements of its traditional diet, such as high rice and vegetable consumption, which has resulted in adult overweight status but not a.Undernutrition b.Micronutrient deficiencies c.Obesity d.None of the above

QUESTION 6 According to Popkin, some of the major technological clashes with human biology contributing to the obesity pandemic include a.Infant formula b.Edible oil revolution c.Sanitation d.Antibiotics

QUESTION 7 According to Popkin, ________ is one of the few low or middle-income countries to aggressively move against sugar-sweetened beverages and other high-calorie, less healthful beverages. a.Russia b.Kuwait c.Mexico d.None of the above

QUESTION 8 According to Popkin, one of the limitations of the current research on obesity in low and middle-income countries is the focus on women of child bearing age and __________ a.adolescents b.preschoolers c.the elderly d.None of the above QUESTION 9 More people in the world are now overweight or obese than underweight. True False

QUESTION 10 Popkin says that the overarching trend that is encouraging all these challenges in diet and lifestyle which lead to obesity is __________ a.GMO's b.Pesticides c.Corporate farms d.Globalization

QUESTION 11 Iron deficiency is considered the most common micronutrient deficiency in the world True False

QUESTION 12 The WHO/UNICEF recommends giving breast milk alone for the first __________ months of life. a.12 b.3 c.6 d.4

QUESTION 13 Breastfeeding markedly improves an infant's chances of surviving the first 2 to 3 months of life. True False QUESTION 14 Breast milk can transmit HIV True False

QUESTION 15 Food security is not only dependent on food availability but also ______ a.GMO's b.Fertilizers c.Food Access

QUESTION 16 One of the populations at risk for undernutrition are the elderly True False

QUESTION 17 Diarrheal diseases and pneumonia are the two most common causes of death in children younger than five years of age in low-income countries True False

QUESTION 18 According to this week's lecture, 80% of arable land worldwide has lost productivity because of soil degradation True False

QUESTION 19 According to Merson, evidence is slowly accumulating that ______ among older persons is an immense and growing problem in low- and middle-income countries. a.iodine deficiency b.malaria c.vitamin a deficiency d.undernutrition

QUESTION 20 Which is labeled the most common preventable cause of mental retardation a.Iodine deficiency b.Vitamin D deficiency c.Copper deficiency d.Zinc deficiency

ceriseminnow141

PLEASE HELP ME ANSWER THESE QUESTIONS.

QUESTION 1 The nutrition transition is driven by three major ecologic factors; demographics, urbanization and changes in a.Longevity b.Standard or living c. Dietary trends

QUESTION 9 More people in the world are now overweight or obese than underweight. True False

QUESTION 11 Iron deficiency is considered the most common micronutrient deficiency in the world True False

QUESTION 12 The WHO/UNICEF recommends giving breast milk alone for the first __________ months of life. a.12 b.3 c.6 d.4

QUESTION 13 Breastfeeding markedly improves an infant's chances of surviving the first 2 to 3 months of life. True False

QUESTION 14 Breast milk can transmit HIV True False

QUESTION 15 Food security is not only dependent on food availability but also ______ a.GMO's b.Fertilizers c.Food Access

QUESTION 16 One of the populations at risk for undernutrition are the elderly True False

QUESTION 17 Diarrheal diseases and pneumonia are the two most common causes of death in children younger than five years of age in low-income countries True False

QUESTION 18 According to this week's lecture, 80% of arable land worldwide has lost productivity because of soil degradation True False

QUESTION 20 Which is labeled the most common preventable cause of mental retardation a.Iodine deficiency b.Vitamin D deficiency c.Copper deficiency d.Zinc deficiency

harlequinplatypus501

1. How does prenatal body weight influence theamount of weight a woman should gain during pregnancy?

2. At what week of gestation does the embryonicperiod begin? When does the fetal period begin? When is the mostlikely time a teratogen can do the most damage, during theembryonic or fetal period?

3. What risks are there to a baby if the mothergains too little weight during the pregnancy? What risks are thereto a baby if the mother gains too much weight during thepregnancy?

4. What is the relationship between mercury,fish and pregnancy?

5. What are some of the common gastrointestinaldistresses pregnant women experience? What remedies are availableto manage them?

6. What is fetal alcohol syndrome? How can itbe prevented? When can it be most accurately diagnosed?

7. How does the MyPlate food guidance systemsupport a healthy pregnancy?

8. Why is a prenatal dietary supplementrecommended throughout pregnancy?

9. What benefits are there to exercising duringpregnancy? How should exercise be modified during eachtrimester?

10. What is one of the best ways to trackgrowth in children? What are you looking for when you trackgrowth?

11. What benefits to the infant are provided bybreastfeeding?

12. What benefits to the mother are provided bybreastfeeding?

13. What nutrients are vital for supportingdental health in infants and children?

14. Although breast milk has advantages overformula, breastfeeding not recommend if the nursing mother haswhich conditions?

15. At what age is it safe to switch fromformula or breast milk to cowâs milk?

16. Which solid foods should be introducedfirst and at what age and why: cereals, vegetables, andfruits?

17. Do infants have the same AMDRs as adults?If not, how are they different? Is the grams/kg body weight forprotein higher or lower for an infant compared to a teenager oradult?

18. Does eating sugary foods lead tohyperactivity in children? If not, what does?

19. What is the division of responsibilitybetween caregivers and children for feeding?

20. How would you outline a healthy dailyschedule and meal/snack pattern to follow for a preschooler and aschool-aged child?

21. Can the MyPlate tool support childhoodnutrition? How? What other tools can be used?

22. What are the consequences of obesity inchildhood? How can childhood obesity be prevented?

23. How can food allergies be prevented andmanaged in childhood?

24. The rapid weight gains that girlsexperience during adolescence begin at what ages? Forboys?

25. Are the AMDR guidelines for adults the sameas for teenagers? What are these guidelines? (Percent calories fromfat? Carbohydrate? Protein?)

26. Why are calcium and iron the most importantminerals for teenagers? Does gender make a difference?

27. If teens are overweight and it isunrealistic to believe they will grow into their current weight?What rate of weight loss is recommended in terms of pound(s) perweek?

28. Describe the typical diets of teens thatsmoke?

29. What is the nutritional consequence alcoholfor teens?

30. Adolescences should be physically activefor how many minutes/day?

31. How does body composition change over theyears? Is there anything one can do to affect this change?

32. Does Basal metabolic rate increase ordecrease with age? Why? Will the elderly need more or fewercalories per kilo body weight than those who are middleaged?

33. Do the elderly need more or less fluid percalorie intake than younger adults? Why?

34. If an elderly person has osteoporosis, canhe or she do anything to improve this condition?

35. How can a poverty-stricken older adult beassured of eating healthy meals on a regular basis?

36. Why is exercise important for theelderly?

37. How many calories are there in a gram ofalcohol? Why does consuming 2 alcoholic drinks in a man has thesame physiological affect as one drink for a woman?

38. What practices will decrease the rate ofalcohol absorption into the blood?

39. Define moderate alcohol intake in terms ofdrinks per day for men and women and say how it relates to HDLcholesterol.

viridianleopard15

ENV100Y5 Lecture Notes - Lecture 23: Crop Yield, Feedlot, Plant Breeding

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