According to data on ecological footprints
a. The carrying capacity of the world is 10 billion
b. Earth's resources are sufficient to sustain future generations at current levels of consumption
c. The ecological footprint of individuals in the United States is more than twice the world average
d. Nations with the largest ecological footprints have the fastest population growth rates

With regard to its rate of growth, a population that is growing logistically

a. Grows fastest when density is lowest

b. Has a high intrinsic rate of increase

c. Grows fastest at an intermediate population density

d. Grows fastest as it approaches carrying capacity

Which of the following represents a demographic transition?

a. A population switches from exponential to logistic growth

b. A population reaches a fertility rate of zero

c. There are equal numbers of individuals in all age groups

d. A population switches from high birth and death rates to low birth and death rates

Skyrocketing growth of the human population appears to be mainly a result of

a. A drop in death rate due to sanitation and health care

b. Better nutrition boosting the birth rate

c. The concentration of humans in cities

d. Social changes that make it desirable to have more children

What are some factors that might have a density-dependent limiting effect on population growth?

What is survivorship?

What does a survivorship curve show?

Explain what the three survivorship curves tell us about humans, squirrels, and clams.