# Exam 4 Homework Questions

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question
Which processes increase a population's size? - Births and deaths. - Deaths and immigration. - Births and immigration. - Deaths and emigration.
births and immigration
question
True or false? Factors that determine the per capita rate of increase of a population include the age of breeding and the number of offspring produced each year.
True
question
Which factor does not affect a habitat's carrying capacity? - Number of nesting sites. - Maximum number of individuals in a population. - Availability of food. - Intensity of predation.
maximum number of individuals in a population
question
Which equation represents the logistic growth rate of a population? ΔNΔt=rmaxN ΔNΔt=rMmaxN{(K−N)/K} ΔNΔt=rN r=b−d
ΔNΔt=rMmaxN{(K−N)/K}
question
Which of the following statements about density-independent growth is true? - Density-independent growth is also known as exponential growth. - Density-independent growth can continue indefinitely in nature. - The per-capita rate of increase may exceed rmax during density-independent growth. - A population that is experiencing density-independent growth levels off at the environment's carrying capacity.
Density-independent growth is also known as exponential growth.
question
Under which of the following conditions would a population most likely experience exponential growth? - Large number of individuals in the starting population. - Environment with a low carrying capacity. - Young populations with few individuals. - Habitat with limited resources.
Young populations with few individuals
question
Which of the following statements about a population experiencing logistic growth is true? - If the K and N values are similar, the amount of available resources is high. - If N is greater than K, the population will shrink. - If N is less than K, the population will not grow. - If the K and N values are far apart, the population will grow very slowly.
If N is greater than K, the population will shrink.
question
Which of the following statements are true of logistic growth? Select all that apply. - When the population reaches carrying capacity, it stops growing. - As the population approaches carrying capacity, it grows more slowly. - As the population approaches carrying capacity, it grows more rapidly. - The population grows at a steady rate.
- When the population reaches carrying capacity, it stops growing. - As the population approaches carrying capacity, it grows more slowly.
question
Which of the following statements are true of a population at carrying capacity? Select all that apply. - The rate at which resources are used is equal to the rate at which they are supplied. - The population growth rate equals zero. - The population continues to grow at a constant rate. - The birth rate equals the death rate.
- The rate at which resources are used is equal to the rate at which they are supplied. - The population growth rate equals zero. - The birth rate equals the death rate.
question
As a population approaches carrying capacity, environmental resistance __________. - remains constant - cannot be determined from the graph - increases - decreases