01
True or false
1 point
True or false: Population distribution is the number of individuals per unit area or volume.
Free Practice Quiz Question List
03. Population Ecology and Human Demographics Online Quiz Questions
Use this free practice quiz with 20 questions to review 03. Population Ecology and Human Demographics, test your knowledge, and prepare for your next test or exam.
20 questions
02
Choose one
1 point
Which situation is most likely to produce exponential population growth?
- A
A population approaching its carrying capacity and producing an S-shaped curve
- B
A population recovering from a disturbance while resources are abundant
- C
A population experiencing strong competition that keeps its size near carrying capacity
- D
A population with a constant probability of death at every age
03
Written response
1 point
A population grows at 2.5% per year. Using the rule of 70, estimate how many years it will take the population to double.
04
Fill in the blank
1 point
In the demographic transition model, Stage 2 is called the stage.
05
Choose one
1 point
Which survivorship pattern describes a population in which many young individuals die, but those that reach adulthood have relatively high survivorship?
- A
Type I survivorship
- B
Type II survivorship
- C
Type III survivorship
- D
A carrying-capacity curve
06
Choose all
1 point
Select all the density-independent factors from the list.
- A
A severe drought
- B
A contagious disease spreading through close contact
- C
A volcanic eruption
- D
Territorial conflict
- E
A disease transmitted more frequently in crowded conditions
07
Written response
1 point
What population characteristic refers to the relative proportions of prereproductive, reproductive, and postreproductive individuals?
08
True or false
1 point
True or false: An environment's carrying capacity is a fixed number that cannot change when climate, resources, or technology change.
- A
True
- B
False
09
Choose all
1 point
Select all the measures defined as the number of events per 1,000 people per year.
- A
Crude birth rate
- B
Total fertility rate
- C
Crude death rate
- D
Life expectancy
- E
Replacement-level fertility
10
Fill in the blank
1 point
The demographic measure defined as immigration minus emigration relative to population size is the .
11
Choose one
1 point
What future trend is most strongly suggested by a constrictive population pyramid with a narrow base and relatively large older cohorts?
- A
It predicts rapid future growth because the population has many young people.
- B
It indicates low fertility and possible population decline.
- C
It shows equal proportions in every age group and no change in population size.
- D
It proves that the population has exceeded its carrying capacity.
12
Open ended
1 point
Explain how a smaller population could produce greater environmental impact than a larger population. Use the IPAT relationship and discuss the roles of population, per-person consumption, and technology.
13
Choose one
1 point
A population begins with 500 individuals. During one year, it has 60 births, 20 immigrants, 30 deaths, and 10 emigrants. What is the population size at the end of the year?
- A
500
- B
520
- C
540
- D
580
14
Choose one
1 point
A population is introduced into a habitat with abundant resources. After several generations, food and space become limited, and the population's growth rate slows as its size approaches the habitat's sustainable limit. Which model best describes this pattern?
- A
The population grows at an accelerating rate without an upper limit.
- B
The population grows rapidly at first, then slows and levels off near carrying capacity.
- C
The population immediately declines because competition prevents reproduction.
- D
The population remains constant because births always equal deaths.
15
Choose one
1 point
Which situation best illustrates a density-dependent limiting factor?
- A
A volcanic eruption affects a population regardless of how crowded it is.
- B
A hurricane destroys habitat in both sparse and dense populations.
- C
A contagious disease spreads more rapidly when individuals are crowded together.
- D
A sudden temperature drop affects all individuals in the region.
16
Choose one
1 point
During one year, a population has 120 births, 50 deaths, 30 immigrants, and 20 emigrants. What is the net change in population size?
- A
An increase of 80 individuals
- B
An increase of 140 individuals
- C
A decrease of 20 individuals
- D
A decrease of 80 individuals
17
Choose one
1 point
A species produces thousands of offspring, provides little parental care, and experiences very high mortality among juveniles. The individuals that reach adulthood often survive for many years. Which survivorship curve is most likely?
- A
Type I, because mortality is concentrated in old age
- B
Type II, because the probability of death is approximately constant at every age
- C
Type I, because the species produces many offspring
- D
Type III, because mortality is very high among the young but lower among survivors that reach adulthood
18
True or false
1 point
True or false: In Stage 2 of the demographic transition model, the death rate declines before the birth rate, which produces rapid population growth.
- A
True
- B
False
19
Written response
1 point
A population grows at a constant rate of 2% per year. Using the rule of 70, approximately how many years will it take the population to double?
20
Written response
1 point
What ecological term describes the collection of factors that restrict a population’s growth?