Question 1

Vitamin A deficiencies are associated with

Accepted Answer

A)  anemia.
B)  weak bones.
C)  a lack of energy,or listlessness.
D)  poorly developed neural systems in embryos.
E)  dry eyes and retinal degeneration.F) B) and C)
G) C) and D)

Question 2

The approximate energy yield of carbohydrates is 4 calories/gram;fats yield about 9 calories/gram,and proteins about 4 calories/gram.Jack and Sarah consumed the following for lunch: Jack-100 grams protein,20 grams fat,75 grams carbohydrates;
Sarah- 75 grams protein,10 grams fats,75 grams carbohydrates.
How many Calories each did Jack and Sarah consume?

Accepted Answer

A)  Jack: 890 Calories,Sarah: 670 Calories
B)  Jack: 880 Calories,Sarah: 680 Calories
C)  Jack: 900 Calories,Sarah: 650 Calories
D)  Jack: 900 Calories,Sarah: 680 Calories
E)  Jack: 880 Calories,Sarah: 690 CaloriesF) A) and D)
G) A) and C) E

Question 3

In developed countries,the most recent increases in agricultural productivity have come from

Accepted Answer

A)  irrigation in arid areas.
B)  building up soil reserves on farms worldwide.
C)  clearing rainforests.
D)  an increase on the land being used for agriculture,especially in developed countries.
E)  new crop varieties and intensified farming.F) A) and D)
G) A) and E)

Question 4

________ can be defined as the transfer of genes for desirable traits,such as pest resistance,into crop plants from other organisms.

Accepted Answer

A)  Natural selection
B)  Evolutionary engineering
C)  Genetic engineering
D)  Genetic resistance
E)  Genetic modificationF) B) and D)
G) A) and E) C

Question 5

The three crops that humans rely on for the majority of nutrients and calories are

Accepted Answer

A)  potatoes,wheat,and oats.
B)  wheat,rice,and maize.
C)  barley,oats,and rye.
D)  maize,oats,and rice.
E)  oats,beans,and barley.F) A) and D)
G) A) and B) B

Question 6

Studies of topsoil erosion on Iowa farmland shows that as much as 50 metric tons are lost per hectare during winter and spring rains.This loss is due to the loss of millimeters of soil from across the entire surface of the fields.Which type of erosion would this be?

Accepted Answer

A)  sheet or rill erosion
B)  gully erosion
C)  streambank erosion
D)  wind erosion
E)  field erosionF) None of the above
G) C) and D)

Question 7

Goiter is a common disease resulting from a shortage of dietary

Accepted Answer

A)  protein.
B)  iodine.
C)  iron.
D)  vitamin A.
E)  folic acid.F) A) and B)
G) A) and C)

Question 8

The layer of soil that is a mixture of minerals and organic material is the

Accepted Answer

A)  O horizon.
B)  A horizon.
C)  humus.
D)  E horizon.
E)  primary layer.F) All of the above
G) A) and D)

Question 9

Sustainable farming

Accepted Answer

A)  is cheaper and safer than conventional farming.
B)  is safe,although it causes weed problems.
C)  uses fewer chemicals but more water than conventional methods.
D)  is an invention of modern agricultural research.
E)  is safer than conventional farming,but much more expensive.F) C) and D)
G) B) and D)

Question 10

Fifty years ago,there were several hundred varieties of wheat grown in the Middle East.Now a few of the more modern high responder varieties have replaced the indigenous species.What are the implications of this change?

Accepted Answer

A)  The productivity of wheat should continue to rise and increase the availability of food per person.
B)  Genetic resources are diminished and an epidemic of wheat disease is highly likely due to the reliance on few species.
C)  The high responder varieties will need specialized harvesting methods because they are so productive.
D)  The biodiversity of wheat species has increased because of the introduction of few hybrid species.
E)  High responder varieties require less water.F) C) and E)
G) D) and E)

Question 11

The parent material layer of a soil is composed of weathered

Accepted Answer

A)  humus.
B)  organic detritus and roots.
C)  residual aluminum and iron.
D)  soil.
E)  rock fragments.F) B) and D)
G) A) and E)

Question 12

Famines are most often serious when there is

Accepted Answer

A)  a very serious drought.
B)  no room to expand agriculture.
C)  steady population growth.
D)  drought and war together.
E)  an attempt by indigenous people to return to old traditions and lands.F) A) and E)
G) A) and B)

Question 13

The number of genetically modified organisms (GMOs)and the acreage devoted to growing them has decreased in the past fifteen years because of the huge number of opponents.

Accepted Answer

A) True 
 B)False

Question 14

What is the theoretical basis of the statement that we could feed more people if we would eat grain rather than feeding it to livestock?

Accepted Answer

A)  the First Law of Thermodynamics
B)  the Second Law of Thermodynamics
C)  ecofeminism
D)  biocentrism
E)  anthropocentrismF) A) and E)
G) A) and B)

Question 15

You can participate in sustainable agriculture by

Accepted Answer

A)  buying local produce.
B)  eating lower on the food chain.
C)  participating in CSAs.
D)  eating locally lower on the food chain and participating in CSAs.E) A) and B)
F) B) and C)

Question 16

Methods of managing topography include all but which of the following?

Accepted Answer

A)  terracing
B)  contour plowing
C)  deep tilling
D)  strip-farmingE) None of the above
F) B) and C)

Question 17

What are two common diseases that result from protein deficiencies?

Accepted Answer

A)  dysentery and diarrhea
B)  dysentery and scurvy
C)  scurvy and pellagra
D)  goiter and cretinism
E)  marasmus and kwashiorkorF) None of the above
G) C) and D)

Question 18

Obesity is a disease that affects

Accepted Answer

A)  poor,developing nations.
B)  wealthy,developed nations.
C)  individuals in every nation equally.
D)  nations that utilize beef and rice as major food sources.E) B) and D)
F) None of the above

Question 19

What is the advantage of genetically modified crops (GMOs) ?

Accepted Answer

A)  they can be designed to resist drought
B)  they offer improved resistance to pests and diseases
C)  they can be engineered to improve yield
D)  they can be altered to produce vaccines
E)  All of these are benefits to GMOs.F) A) and E)
G) All of the above

Question 20

How is the increase in corn and soy production related to livestock production for meat?

Accepted Answer

A)  Much of the grain produced is fed to animals raised for meat.
B)  The same farms that grow the corn and soy also raise livestock.
C)  There is no relationship between the two variables.
D)  Corn and soy products are often eaten by people in the same meals as meat products.
E)  Livestock are rotated into the fields where corn and soy are produced to fertilize the fields.F) A) and E)
G) B) and E)

Exam 7: Food and Agriculture

Vitamin A deficiencies are associated with

Correct Answer
verified

Correct Answer
verified
E

In developed countries,the most recent increases in agricultural productivity have come from

Correct Answer
verified

________ can be defined as the transfer of genes for desirable traits,such as pest resistance,into crop plants from other organisms.

Correct Answer
verified
C

The three crops that humans rely on for the majority of nutrients and calories are

Correct Answer
verified
B

Studies of topsoil erosion on Iowa farmland shows that as much as 50 metric tons are lost per hectare during winter and spring rains.This loss is due to the loss of millimeters of soil from across the entire surface of the fields.Which type of erosion would this be?

Correct Answer
verified

Goiter is a common disease resulting from a shortage of dietary

Correct Answer
verified

The layer of soil that is a mixture of minerals and organic material is the

Correct Answer
verified

Sustainable farming

Correct Answer
verified

Fifty years ago,there were several hundred varieties of wheat grown in the Middle East.Now a few of the more modern high responder varieties have replaced the indigenous species.What are the implications of this change?

Correct Answer
verified

The parent material layer of a soil is composed of weathered

Correct Answer
verified

Famines are most often serious when there is

Correct Answer
verified

The number of genetically modified organisms (GMOs)and the acreage devoted to growing them has decreased in the past fifteen years because of the huge number of opponents.

Correct Answer
verified

What is the theoretical basis of the statement that we could feed more people if we would eat grain rather than feeding it to livestock?

Correct Answer
verified

You can participate in sustainable agriculture by

Correct Answer
verified

Methods of managing topography include all but which of the following?

Correct Answer
verified

What are two common diseases that result from protein deficiencies?

Correct Answer
verified

Obesity is a disease that affects

Correct Answer
verified

What is the advantage of genetically modified crops (GMOs) ?

Correct Answer
verified

How is the increase in corn and soy production related to livestock production for meat?

Correct Answer
verified

Exam 7: Food and Agriculture

Vitamin A deficiencies are associated with

Correct AnswerverifiedShow Answer

Correct AnswerverifiedE

In developed countries,the most recent increases in agricultural productivity have come from

Correct AnswerverifiedShow Answer

________ can be defined as the transfer of genes for desirable traits,such as pest resistance,into crop plants from other organisms.

Correct AnswerverifiedC

The three crops that humans rely on for the majority of nutrients and calories are

Correct AnswerverifiedB

Studies of topsoil erosion on Iowa farmland shows that as much as 50 metric tons are lost per hectare during winter and spring rains.This loss is due to the loss of millimeters of soil from across the entire surface of the fields.Which type of erosion would this be?

Correct AnswerverifiedShow Answer

Goiter is a common disease resulting from a shortage of dietary

Correct AnswerverifiedShow Answer

The layer of soil that is a mixture of minerals and organic material is the

Correct AnswerverifiedShow Answer

Sustainable farming

Correct AnswerverifiedShow Answer

Fifty years ago,there were several hundred varieties of wheat grown in the Middle East.Now a few of the more modern high responder varieties have replaced the indigenous species.What are the implications of this change?

Correct AnswerverifiedShow Answer

The parent material layer of a soil is composed of weathered

Correct AnswerverifiedShow Answer

Famines are most often serious when there is

Correct AnswerverifiedShow Answer

The number of genetically modified organisms (GMOs)and the acreage devoted to growing them has decreased in the past fifteen years because of the huge number of opponents.

Correct AnswerverifiedShow Answer

What is the theoretical basis of the statement that we could feed more people if we would eat grain rather than feeding it to livestock?

Correct AnswerverifiedShow Answer

You can participate in sustainable agriculture by

Correct AnswerverifiedShow Answer

Methods of managing topography include all but which of the following?

Correct AnswerverifiedShow Answer

What are two common diseases that result from protein deficiencies?

Correct AnswerverifiedShow Answer

Obesity is a disease that affects

Correct AnswerverifiedShow Answer

What is the advantage of genetically modified crops (GMOs) ?

Correct AnswerverifiedShow Answer

How is the increase in corn and soy production related to livestock production for meat?

Correct AnswerverifiedShow Answer

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E

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C

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B

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