Exam 3 Practice Quizzes

Question 1

The science of population structure and growth is called

Answer 1

Demography

Question 2

Which of the following statements about per capita resource use is FALSE?

Answer 2

In developing countries, per capita resource use is high.

Question 3

An age structure diagram shaped like a pyramid is characteristic of a _________ country with a(n) ___________ population growth rate.

Answer 3

Less Developed, Increasing

Question 4

Which of the following is not a reason for high fertility rates?

Answer 4

Free Public Education

Question 5

The potential for future increases or decreases in a population based on the present age structure is called

Answer 5

Population Growth Momentum

Question 6

In the pre-industrial demographic stage:

Answer 6

Birth and Death Rates are High

Question 7

Which option most closely resembles the current size of the human population?

Answer 7

7 Billion

Question 8

200 years ago, when the world population was about 1 billion, __________ predicted great food shortages due to rising populations.

Answer 8

Thomas Malthus

Question 9

In Sri Lanka, the average age at marriage is 25, and the average number of children born per woman is 2.0. In Bangladesh, the average age at marriage is 17, and the average number of children born per woman is 3.3. Which of the following conclusions is supported by these data?

Answer 9

The earlier a woman marries, the more children she is likely to have.

Question 10

Even with lower birth rates, Mexico’s positive __________will cause its population to increase because of the large number of young women having babies.

Answer 10

Population Growth Momentum

Question 11

The process by which principles of ecology are used to help return a degraded environment to a more functional and sustainable one is called?

Answer 11

Restoration Ecology

Question 12

Which of the following is most likely to suffer from endemic species loss?

Answer 12

Island

Question 13

Organisms that provide an early warning of environmental damage are known as:

Answer 13

Indicator Species

Question 14

The California Condor’s entire population declined to as low as 22 birds. This incredibly small population size would classify this species as:

Answer 14

Endangered

Question 15

Which of the following human induced threats is the greatest contributor to the biodiversity crisis?

Answer 15

Habitat Loss

Question 16

Conservation biology is the scientific study of:

Answer 16

how humans impact biodiversity & the development of ways to protect it

Question 17

Which of the following is an example of a species that was threatened historically due to overexploitation?

Answer 17

American Bison

Question 18

Approximately how many mass extinctions have taken place over the history of life on this planet?

Answer 18

Six

Question 19

The quantity of various grains remaining from previous harvests is known as:

Answer 19

Grain Stocks

Question 20

Concern over the routine use of antibiotics in raising livestock centers around:

Answer 20

the potential that bacterial resistance to antibiotics may increase as a result.

Question 21

A controversial agricultural practice uses both ______ and ________ on livestock to promote faster growth and lower costs.

Answer 21

antibiotics, hormones

Question 22

We are preserving older varieties of germplasm in storage vaults because:

Answer 22

Older plant and animal varieties may have adaptations that have been lost in more modern varieties.

Question 23

A “super bug” is:

Answer 23

an insect that is resistant to all legal forms of pesticides

Question 24

Modern cultivation methods combined with high-yielding varieties of certain popular crops to increase the amount of food produced per designated area characterizes:

Answer 24

The Green Revolution

Question 25

An area of land that is drained by a single river is called a/an:

Answer 25

Watershed

Question 26

Saltwater intrusion can occur in coastal areas due to:

Answer 26

Excessive Use of Groundwater

Question 27

Most freshwater is present in the form of:

Answer 27

Ice Caps and Glaciers

Question 28

Nonpotable water that has already been used once, but can be reused in homes for use in toilets or car washing is called:

Answer 28

Gray Water

Question 29

Which of the following would be the most effective way to reduce flood-related damage?

Answer 29

Restricting Development on Flood Plains

Question 30

Approximately ______ of the Earth’s water is freshwater that can be readily used by humans and other terrestrial organisms.

Answer 30

0.5%

Question 31

Which of the following does NOT increase the risk or severity of flooding?

Answer 31

Saltwater Intrusion

Question 32

Orange County, CA is dealing with its water shortage problem by:

Answer 32

Recycling wastewater into drinking water with a Toilet to Tap program

Question 33

The upper limit of an unconfined underground reservoir of water is termed the:

Answer 33

Water Table

Question 34

Groundwater in aquifers is naturally replenished by _____________

Answer 34

Percolation