Home Page Science Biology Ecology AP Environmental Science ecology exam 2 part 2 - Flashcards

ecology exam 2 part 2 – Flashcards

Alexander Rose

8 July 2022

question

Until about 10,000 years ago, our species depended on ________.

answer

hunting and gathering

question

Of the following, ________ requires the least land to produce 1 kg of protein.

answer

chicken

question

Raising ________ requires the most land and water.

answer

beef cattle

question

Bt crops

answer

have been given a bacterial gene that gives chemical protection against pests

question

Green Revolution techniques ________.

answer

have increased crop yields but may not be sustainable

question

Over-irrigation can result in ________.

answer

soil salinization and waterlogging

question

The comparison shown in the figure is environmentally significant because ________

answer

production of beef and pork is resource-intensiv

question

Since 1960, pesticide use has increased ________ worldwide.

answer

fourfold

question

Seed banks (institutions that store and preserve seeds) are important for _

answer

protecting genetic diversity

question

The figure demonstrates that it requires roughly ________ times more feed input to produce 1 kg of eggs, compared to 1 kg of milk.

answer

question

Monoculture ________

answer

is an agricultural practice of growing large stands of a single species

question

The breakdown of large rocks into smaller pieces is affected by

answer

affected by rainfall, freezing and thawing

question

No-till farming would be most beneficial for farmers ___

answer

with steeply sloped fields

question

Recombinant DNA ___

answer

is the merging of DNA from unrelated organisms to create new genetic varieties

question

The loss of more than 10% productivity in an arid area due to erosion, soil compaction, deforestation or overgrazing is

answer

desertification

question

What is true about GM crops?

answer

The United States leads the world in land area dedicated to GM crops.

question

Normal Borlaug, who passed away in 2009, pioneered the development of

answer

high-yield wheat

question

Industrial agriculture __

answer

increased our ability to obtain more food from the same area

question

Leaching ________.

answer

removes water-soluble nutrients from soils

question

Terracing, contour farming, intercropping, and crop rotation all _

answer

are techniques for conserving soil resources and fertility

question

It is more energetically efficient for us to eat more

answer

plant-based foods

question

Organic farming has increased in

answer

has increased in the United States, Canada, and Europe in recent years

question

The O horizon of soils consists of _

answer

mostly organic material

question

Researchers have demonstrated that organic farming ___

answer

decreased organic soil losses while giving yields comparable to conventional farming

question

We lose 5 to 7 million ha of productive cropland per year to

answer

erosion, over-irrigation, and overgrazing

question

Humus is _

answer

composed of organic matter and is necessary to fertility and holding soil moisture

question

Which of the following is true?

answer

In 2010, 1 in 4 adults in the United States is obese and 3 out of 5 are overweight.

question

Aquaculture _

answer

can bring economic benefits and food security to many developing regions

question

Of the following, ________ best describes integrated pest management (IPM).

answer

biocontrol measures, crop rotation, and habitat diversification

question

Relative to sustainable agriculture, insects' roles are as

answer

essential pollinators and predators

question

The Conservation Reserve Program pays farmers to _

answer

stop cultivating highly erodible land

question

The consequences of over-fertilizing include __

answer

eutrophication and dead zones in nearby aquatic ecosystems

question

Cows require a high quantity of feed because they _

answer

take time to grow and have a low energy conversion efficiency

question

Based on the information in the figure, you decide to make changes in your diet to diminish your ecological footprint (the environmental impact of your food choices) by

answer

shifting your protein intake from beef and pork to eggs and dairy products

question

During the past half-century, global food production has ________ world population growth.

answer

grown at a faster rate than

question

Factors involved in soil formation are _

answer

weathering of parent material, freezing/thawing, tree roots

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question

Until about 10,000 years ago, our species depended on ________.

answer

hunting and gathering

question

Of the following, ________ requires the least land to produce 1 kg of protein.

answer

chicken

question

Raising ________ requires the most land and water.

answer

beef cattle

question

Bt crops

answer

have been given a bacterial gene that gives chemical protection against pests

question

Green Revolution techniques ________.

answer

have increased crop yields but may not be sustainable

question

Over-irrigation can result in ________.

answer

soil salinization and waterlogging

question

The comparison shown in the figure is environmentally significant because ________

answer

production of beef and pork is resource-intensiv

question

Since 1960, pesticide use has increased ________ worldwide.

answer

fourfold

question

Seed banks (institutions that store and preserve seeds) are important for _

answer

protecting genetic diversity

question

The figure demonstrates that it requires roughly ________ times more feed input to produce 1 kg of eggs, compared to 1 kg of milk.

answer

question

Monoculture ________

answer

is an agricultural practice of growing large stands of a single species

question

The breakdown of large rocks into smaller pieces is affected by

answer

affected by rainfall, freezing and thawing

question

No-till farming would be most beneficial for farmers ___

answer

with steeply sloped fields

question

Recombinant DNA ___

answer

is the merging of DNA from unrelated organisms to create new genetic varieties

question

The loss of more than 10% productivity in an arid area due to erosion, soil compaction, deforestation or overgrazing is

answer

desertification

question

What is true about GM crops?

answer

The United States leads the world in land area dedicated to GM crops.

question

Normal Borlaug, who passed away in 2009, pioneered the development of

answer

high-yield wheat

question

Industrial agriculture __

answer

increased our ability to obtain more food from the same area

question

Leaching ________.

answer

removes water-soluble nutrients from soils

question

Terracing, contour farming, intercropping, and crop rotation all _

answer

are techniques for conserving soil resources and fertility

question

It is more energetically efficient for us to eat more

answer

plant-based foods

question

Organic farming has increased in

answer

has increased in the United States, Canada, and Europe in recent years

question

The O horizon of soils consists of _

answer

mostly organic material

question

Researchers have demonstrated that organic farming ___

answer

decreased organic soil losses while giving yields comparable to conventional farming

question

We lose 5 to 7 million ha of productive cropland per year to

answer

erosion, over-irrigation, and overgrazing

question

Humus is _

answer

composed of organic matter and is necessary to fertility and holding soil moisture

question

Which of the following is true?

answer

In 2010, 1 in 4 adults in the United States is obese and 3 out of 5 are overweight.

question

Aquaculture _

answer

can bring economic benefits and food security to many developing regions

question

Of the following, ________ best describes integrated pest management (IPM).

answer

biocontrol measures, crop rotation, and habitat diversification

question

Relative to sustainable agriculture, insects' roles are as

answer

essential pollinators and predators

question

The Conservation Reserve Program pays farmers to _

answer

stop cultivating highly erodible land

question

The consequences of over-fertilizing include __

answer

eutrophication and dead zones in nearby aquatic ecosystems

question

Cows require a high quantity of feed because they _

answer

take time to grow and have a low energy conversion efficiency

question

Based on the information in the figure, you decide to make changes in your diet to diminish your ecological footprint (the environmental impact of your food choices) by

answer

shifting your protein intake from beef and pork to eggs and dairy products

question

During the past half-century, global food production has ________ world population growth.

answer

grown at a faster rate than

question

Factors involved in soil formation are _

answer

weathering of parent material, freezing/thawing, tree roots

ecology exam 2 part 2 – Flashcards

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