Generalist/Specialist Species
K and R Species
Survivorship/ Carry Capacity
Age Diagrams/Demographics
100
What is a generalist species?
A. Species with a broad range of tolerance
B. Species with a narrow range of tolerance
A. Species with a broad range of tolerance
100
This type of species puts energy into reproduction not survival.
A. r-selected
B. k-selected
C. s-selected
j-selected
A. r-selected
100
An ecosystem’s carrying capacity for a population is determined by all of the following factors EXCEPT
A. Space
B. Food
C. Water
D. climatic events, such as tornadoes.
D. climatic events, such as tornadoes.
100
Which of the following characteristics is most closely associated with a country that demonstrates the age structure diagram show above?
A. There is a low infant mortality rate
B. There is a low population growth
C. A high percentage of the population has access to medical care
D. There is a high total fertility rate
D. There is a high total fertility rate
200
Which type of species is more likely to survive in a changing environment?
A. Generalist
B. Extinct
C. Protected
D. Specialist
A. Generalist
200
This type of species population remains close to carrying capacity (k) over long periods of time.
A. r-selected
B. k-selected
C. s-selected
D. j-selected
B. k-selected
200
The rule of 70 can be used to determine a population's doubling time. Doubling time is a measure of
A. Population growth rate
B. Environmental impact of each individual in a population
C. Length of time an individual born in a population is expected to live
D. Average age of the first reproductive event per 1,000 women in the country
A. Population growth rate
200
which of the following density-independent factors can affect the size of a human population?
A. Disease
B. Availability of food
C. Heat waves
D. Access to clean water
C. Heat waves
300
What type of species has a narrow niche?
A. Generalist
B. Specialist
C. Carnivore
D Herbivore
B. Specialist
300
The total fertility rate (TFR) is an estimate of
A. the number of children that will survive to adulthood.
B. the number of children each woman in a population will have.
C. the number of years a typical infant will live.
D. the percentage of women in a population that are able to have children.
B. the number of children each woman in a population will have.
300
In a human population undergoing the demographic transition, which of the following generally decreases first?
A. Average family size
B. Death rate
C. Level of education
D. Life expectancy
B. Death rate
300
During which stage of the demographic transition shown above does a population begin to experience an explosive increase in growth?
A. Stage 1
B. Stage 2
C. Stage 3
D. Stage 4
B. Stage 2
400
Which of the following best describes a difference between generalist species and specialist species?
A. Generalist use a large range of resources, while specialists have a limited range of resources they use to survive.
B. Generalists can thrive in a narrow range of environmental conditions, while specialists thrive in a variety of environmental conditions.
C. Generalists are often herbivores, while specialists are often omnivores.
D. Generalists are more prone to extinction than specialists are.
A. Generalist use a large range of resources, while specialists have a limited range of resources they use to survive.
400
Members of an r-selected species characteristically
A. grow slowly
B. produce few offspring
C. have long life spans
D. reach sexual maturity quickly
D. reach sexual maturity quickly
400
If the population of a country grows at a rate of approximately 5 percent per year, the number of years required for the population to double is closest to
A. 5 years
B. 10 years
C. 15 years
D. 20 years
C. 15 years
400
What type of age structure diagram represents a population with negative growth rate?
A
B
C
D
D
500
Which of the following statements beef describes why birth and death rates are changing in a country that is in Phase 2 of the demographic transition?
A. Individuals have better sanitation and access to clean drinking water
B. Individuals have increased availability of birth control and have smaller family sizes
C. The population has a high infant mortality rate because of the lack of health care
D. The population size stops increasing and may decline if birth rates are lower than death rates
A. Individuals have better sanitation and access to clean drinking water
500
The graphs below show changes in a population over time. The dashed line represents the carry capacity of the species. Which of the following graphs best shows the population size of a K-selected species over time in a stable environment?
A. 
B. 
C. 
D. 
C.
500
Which of the following is a characteristic of an organism that displays a Type III survivorship curve as in the graph above?
A. The organism has a fairly constant mortality rate over time.
B. The organism reaches reproductive maturity after many years.
C. The organism produces large numbers of offspring every time it reproduces.
D. The organism provides constant parental care to its offspring for several years.
C. The organism produces large numbers of offspring every time it reproduces.
500
Countries undergoing rapid populations growth include which of the following?
A. I only
B. II only
C. III only
D. I II and III
A. I only