Question 1

What is Earth's carrying capacity for the human population?

Accepted Answer

A)  About 6.8 billion people 
B)  About 8 billion people 
C)  Up to one trillion people 
D)  We have exceeded it. 
E)  It is unknown.

Question 2

Suppose a population of deer increases because the food supply is abundant. Predators of the deer also increase in population. When the number of predators increases, more deer are eaten, and eventually their population size decreases. As the deer population decreases so does the predator population.
-In this example, what is the limiting factor?

Accepted Answer

A)  Deer 
B)  Predators 
C)  Carrying capacity 
D)  Food supply 
E)  The size of the forest

Question 3

Which of the following statements about population densities is true?

Accepted Answer

A)  Less developed nations have similar population densities as more developed countries. 
B)  Less developed nations have higher population densities than more developed countries and contain 82% of the people on earth. 
C)  More developed nations have lower population densities than less developed countries but contain 82% of the people on earth. 
D)  More developed nations have higher population densities than less developed countries due to advances in technology and medicine. 
E)  Population density and size tend to be equally distributed across the globe.

Question 4

As humans densities increase,

Accepted Answer

A)  starvation will increase and disease will decrease. 
B)  starvation and disease will remain the same. 
C)  starvation and disease will increase. 
D)  resource consumption will increase but starvation and disease will decrease. 
E)  resource consumption will decrease but starvation and disease will increase.

Question 5

Refer to the figure below. Population size increases over time if the number of births or immigration exceeds the deaths and emigration. If no limiting factors slow growth, then the natural growth is a simple progression called

Accepted Answer

A)  the carrying capacity. 
B)  the ecological footprint. 
C)  exponential growth. 
D)  density dependence. 
E)  population density.

Question 6

Humans have increased their access to resources and made advances that have reduced limiting factors. Engineering has helped humans bring energy resources where they are needed, divert water away from cities and to crops, built buildings that can withstand earthquakes, created medicines and medical procedures that save lives, and much more. Why then are diseases like heart disease and diabetes still causing many deaths?

Accepted Answer

A)  Medicine for these diseases has not been researched and developed enough to prevent death. 
B)  People inherit these diseases. 
C)  Low-income nations still have inadequate access to clean water. 
D)  People live more sedentary lifestyles and eat more processed foods. 
E)  These diseases have spread globally, largely due to immigration.

Question 7

If everyone on Earth were to live at the typical consumption level of Americans, what would most likely happen?

Accepted Answer

A)  Earth's resources would be depleted at a much faster rate. 
B)  The planet would have a small carrying capacity. 
C)  Limiting factors would evolve to control the population. 
D)  Both a and b 
E)  All of the above

Question 8

_______ is a measure of human demand on the Earth's ecosystems. It represents the amount of biologically productive land and sea area needed to regenerate the resources a human population consumes and to absorb and render harmless the corresponding waste.

Accepted Answer

A)  An ecological footprint 
B)  Population density 
C)  The carrying capacity 
D)  IPAT 
E)  A limiting factor

Question 9

Predict the future standard of living of humans globally if the current growth rate of human populations continues.

Accepted Answer

The answer of Predict the future standard of living of...

Question 10

Human activities have led to longer life spans and better health for many people. How has population growth affected the environment?

Accepted Answer

The answer of Human activities have led to longer life...

Question 11

Which of the following statements about population size, density, and growth is true?

Accepted Answer

A)  Population size and density may differ, as may growth rates. 
B)  When population size is high, density is low and growth rate is low. 
C)  Population size and density may differ but growth rates are the same around the globe. 
D)  When population size is high, density and growth rate are also high. 
E)  If population size is low, density is high and growth rates will be low.

Question 12

Humans have had a presence on Earth for a short time, geologically speaking. What human activities have resulted in the growth of human population?

Accepted Answer

The answer of Humans have had a presence on Earth...

Question 13

Which of the following correctly describes I = P × A × T?

Accepted Answer

A)  Population size, standard of living, and technology impact the environment. 
B)  Population size, standard of living, and technology have no impact on the environment. 
C)  Population size is impacted by the standard of living, technology, and the environment. 
D)  Standard of living and technology impact the population size. 
E)  Standard of living, technology, and the impact they have on the environment determine population size.

Question 14

Why might it be a good idea to limit human population growth?

Accepted Answer

The answer of Why might it be a good idea...

Question 15

Which of the following statements about population growth and consumption is true?

Accepted Answer

A)  Wealthy developed nations consume more resources and produce more waste per individual than do developing countries. 
B)  Less-industrialized countries have higher birth rates so they have higher consumption rates. 
C)  Developing nations recognize the problems of overpopulation more than developed nations since they feel the effects directly. 
D)  Both a and c 
E)  All of the above

Question 16

Which of the following have removed limits to human population growth?

Accepted Answer

A)  Medical practices 
B)  Agriculture 
C)  Sanitation methods 
D)  Both a and c 
E)  All of the above

Exam 5: Human Population Dynamics