Chapter 16

All members of a population ___________. a. are the same age b. reproduce c. belong to the same species d. all of the above

The exponential model of population growth assumes __________. a. the death rate declines as population density increases b. per capita growth rate does not change c. industrialization causes a fall in birth rates d. resources are limited

For a given species, the maximum rate of population increase under ideal conditions is the ___________. a. biotic potential b. carrying capacity c. environmental resistance d. density control

Competition for resources and disease are __________ controls on population growth rates. a. density-independent b. density-dependent

An increase in the population of a prey species would most likely __________ the carrying capacity for that species' predators. a. increase b. decrease c. not affect d. stabilize

Members of a species with an __________ life history have many off-spring and invest little in each one. a. equilibrial b. opportunistic

The logistic model of population growth takes into account __________ , but not __________. a. density-dependent factors; density-independent factors b. density-independent factors; density-dependent factors

The human population is now about __________. a. 7 billion b. 7 million c. 70 billion d. 70 million

Compared to the less developed countries, the highly developed ones have a higher __________. a. death rate b. birth rate c. total fertility rate d. resource consumption rate

True or false? A population can never exceed its carrying capacity.

The total fertility rate of a population is __________. a. always higher than the replacement fertility rate b. the average number of offspring a female has in her lifetime c. the maximum number of children a woman could have if her resources were unlimited

If an exponentially growing population of 1,000 mice has a per capita growth rate ( \(r\) ) of 0.3 mice per month, how many mice will there be one month from now? a. 3,000 b. 3,300 c. 1,300 d. 300

Match each term with its most suitable description. $$\begin{array}{cc}\text{______carrying capacity} && \text {a. change in birth and death rates with industrialization}\end{array}$$ $$\begin{array}{cc}\text{______logistic growth} && \text {b. group of individuals born during the same period of time}\end{array}$$ $$\begin{array}{cc}\text{______exponential growth} && \text {c. population growth plots out as an S-shaped curve}\end{array}$$ $$\begin{array}{cc}\text{______demographic transition} && \text {d. largest number of individuals sustainable by the resources in a given environment}\end{array}$$ $$\begin{array}{cc}\text{______limiting factor} && \text {e. population growth plots out as a J-shaped curve}\end{array}$$ $$\begin{array}{cc}\text{______cohort} && \text {f. essential resource that restricts population growth when scarce}\end{array}$$