Ch. 10 Study Guide

Question 1

How many kilograms of feed does it take to produce:

1kg Cow

Answer 1

20.0

Question 2

How many kilograms of feed does it take to produce:

1kg Pig

Answer 2

7.3

Question 3

How many kilograms of feed does it take to produce:

1kg Eggs

Answer 3

4.5

Question 4

How many kilograms of feed does it take to produce:

1kg Chicken

Answer 4

2.8

Question 5

How many kilograms of feed does it take to produce:

1kg Milk

Answer 5

1.1

Question 6

Why is there a difference in the kilograms of feed it takes to produce an animal? Why is it significant?

Answer 6

Different animals require different amounts of food, to result in 1 meat for human use; It chooses how we use our resources, which has lead to feedlots (factory farms)

Question 7

What is Monoculture? Benefits of it?

Answer 7

Large expanses of a single crop.

• More efficient
• Increases output

Question 8

What is Recombinant DNA?

Answer 8

DNA that has been patched together from the DNA of multiple organisms.

Question 9

Which type of livestock requires the most land and water to produce?

Answer 9

Land & Water- Beef/Cattle

Question 10

Order of LAND required to produce 1kg of protein (meat)?

*Greatest to least

Answer 10

Beef
Pork
Milk
Eggs
Chicken

Question 11

Order of WATER required to produce 1kg of protein (meat)?

*Greatest to least

Answer 11

Beef 
Pork
Milk
Chicken
Eggs

Question 12

What country leads the world in land area dedicated to GM crops?

Answer 12

The United States

Question 13

Benefits of organic farming?

Answer 13

• Lower input costs
• Enhanced income
• Reduced chemical pollution & soil degradation

Question 14

Risks of organic farming?

Answer 14

• Increased pest attacks

- Lack of synthetic chemicals encourages pollinating insects

Question 15

What are BT crops?

Answer 15

Bacillus Thuringiensis; Soil bacterium that produces a protein that kills many caterpillars and some fly and beetle larvae.

Question 16

What is IPM?

Answer 16

Irrigated Pest Management; Numerous techniques used to rid pests.

Question 17

How do farmers utilize IPM?

Answer 17

Biocontrol, use of chemicals when needed, close monitoring of populations, crop rotation, mechanical pest removal.

Question 18

Why did the Indonesian government support IPM for agriculture?

Answer 18

They subsided pest iced use heavily for years, which caused a bigger problem.

Question 19

What are insects role in agriculture?

Answer 19

To pollinate crops.

Question 20

What is the Cartegena Protocol? Has the U.S. Signed it?

Answer 20

A treaty that lays our guidelines for open information about exported crops.

Question 21

Human diet is narrowed: ____ of our food comes from ____crop and ____livestock species.

Answer 21

90%; 15; 8

Question 22

Why are seed lots important?

Answer 22

They keep seed samples in cold, dry conditions, to encourage long-term violability; Planted periodically to renew stocks.

Question 23

Why is Oaxaca, Mexico significant?

Answer 23

–

Question 24

How can livestock receive the labeling of organic?

Answer 24

• Raised organically from the second day of life
• Must be feed 100% organic
• Must have access outdoors

Question 25

Why do soybeans and corn dominate the GM market?

Answer 25

They are ingredients in processed foods, so they are more easily accepted.

Question 26

How much energy is lost from one trophic level to the next?

Answer 26

90%

Question 27

Eating ______ on the food chain feeds more people.

Answer 27

Lower

Question 28

why are environmentalist concerned about GM Crops if they decrease pesticide use?

Answer 28

Inserted genes can spread to non target species.