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Ch 4 Population Ecology

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What type of factor?

As the number of cheetahs drops, the number of gazelles increases

a)

density dependent

b)

density independent

2.

What type of factor?

An ice storm kills many ducks

a)

density dependent

b)

density independent

3.

What type of factor?

hurricanes frequently reduce palm tree populations

a)

Density Dependent

b)

Density Independent

4.

What type of factor?

a drought wipes out a seed bearing plant population

a)

Density Dependent

b)

Density Independent

5.

What type of factor?

an island has only enough nesting sights for 6 pairs of pelicans

a)

Density Dependent

b)

Density Independent

6.

Technology has allowed humans to temporarily increase the carrying capacity of Earth.

a)

True

b)

False

7.

Population-limiting factors keep a population from increasing indefinitely.

a)

True

b)

False

8.

Industrially developed countries generally have high population growth rates.

a)

True

b)

False

9.

If Honduras were to experience a low birth rate and death rate in the next five years, it would be undergoing a demographic transition.

a)

True

b)

False

10.

Competition can occur within a species or between two different species.

a)

True

b)

False

11.

People in industrially developed countries use a lot fewer resources than people in developing countries.

a)

True

b)

False

12.

Once the world reaches zero population growth, the age structure will be more balanced.

a)

True

b)

False

13.

What is an example of uniform dispersal?

a)

random elephant groups

b)

school of fish

c)

territorial pair of jaguars

d)

one large herd of buffalo

14.

Which organism follows an r-strategy for reproduction?

a)

robin

b)

zebra

c)

human

d)

fly

15.

Which might increase the human carrying capacity during the 21st century?

a)

widespread fatal diseases

b)

family planning strategies

c)

changing reproductive patterns

d)

new technological advances

16.

What event is correlated with the beginning of exponential growth in human populations?

a)

the invention of agriculture

b)

the start of the industrial revolution

c)

the bubonic plague

d)

the end of WW2

17.

What is an example of population density?

a)

total number of alligators in FL

b)

a country with a large human population

c)

two cougars/100 acres

d)

the maximum number of wolves in a forest

18.

Based on the age structure diagram in Fig. D, this population is showing ___ growth.

a)

slow

b)

fast

c)

stable

d)

declining

19.

Which characteristic is typical of a k-strategist?

a)

produces many offspring

b)

lengthy parental care

c)

generally small organism

d)

short life span

20.

When birth rates = death rates, a country is experiencing

a)

demographic transition

b)

zero growth

c)

inside down growth

d)

fast growth