Chapter 40

The rate at which population size grows or declines depends on the rate of a. births c. immigration e. a and \(b\) b. deaths d. emigration f. all of the above

Suppose 200 fish are marked and released in a pond. The following week, 200 fish are caught and 100 of them have marks. How many fish are in this pond?

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

________ is a density-independent factor that influences population growth. a. Resource competition c. Predation b. Infectious disease d. Harsh weather

A life history pattern for a population is a set of adaptive traits such as a. longevity c. age at reproductive maturity b. fertility d. all of the above

The human population is now over 7 billion. It reached 6 billion in a. 2007 b. 1999 c. 1802 d. 1350

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

An increase in infant mortality will _______ replacement fertility rate. a. raise b. lower c. not affect

Species that usually colonize empty habitats are more likely to have traits that are favored by a. \(r\) -selection b. \(K\) -selection

Match each term with its most suitable description. carrying a. maximum rate of increase per capacity individual under ideal conditions exponential \(\quad\) b. population growth plots out growth \(\quad\) as an S-shaped curve biotic c. maximum number of individuals potential \(\quad\) sustainable by the resources limiting in a given environment factor \(\quad\) d. population growth plots out logistic as a \(J\) -shaped curve growth e. essential resource that restricts population growth when scarce