quiz 3

About what portion of world freshwater withdrawals is used for agriculture?

2/3

Famines are most often serious when there is

A very serious drought.

Which of the following statements is FALSE?

Availability of calories is the most important measure of food and health.

DDT is a

Chlorinated hydrocarbon (organochloride)

Since 1960, child mortality has

Decreased in all parts of the world

Which of the following is true about the leading causes of global disease burden rankings for 1990 and 2015?

Diabetes was not on the list in 1990, but in 2015 it was the number 8 cause of global disease burden.

Conservationists and wildlife managers use gap analysis to

Find unprotected landscapes that are rich in species

Which of the following does NOT describe the status of the world's wild fisheries?

Fish farming has allowed some wild fish to recover worldwide.

Most commercial loggers prefer "clear-cut" harvesting because it

Is the most efficient, cheapest harvest method using large, fast machinery instead of costly labor

What are two common diseases that result from protein deficiencies?

Marasmus and kwashiorkor

The U.S. Army participated in extermination of the American bison during the mid-1800s because

Native people depended on the bison for food and shelter

Most public rangelands are in poor condition due to

Overcrowding of private livestock

The process that happens when pesticide residues evaporate from soil and water in warm areas, and then condense in and precipitate in colder regions is called

The grasshopper effect

The pharmaceutical industry has an interest in preventing species extinction because

Undiscovered species may provide lucrative new drugs.

Individuals represented by the right end of the dose/response curve (responding to doses between 30 and 40 ppm) are ____________ to the chemical.

Very insensitive

A species that is naturally rare or that has been depleted to dangerous levels is known, according to the Endangered Species Act, as a(n) ________ species.

Vulnerable

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

Wheat, rice, and maize

Which of the following ranks the IUCN Categories of Protected areas in order from least to most human impact/intervention allowed?

Wilderness area, wildlife management area, managed resource area

Flagship species

are especially interesting and attractive and are used by conservation organizations to motivate people.

The SLOSS debate among conservation biologists refers to:

determining whether reserves should be one large area of land or multiple smaller areas of land.