Human Biology: Concepts and Current Issues
7th Edition
ISBN: 9780321821652
Author: Michael D. Johnson
Publisher: Benjamin Cummings
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Textbook Question
Chapter 23, Problem 4TY
Which of the following statements is false?
a. The human population has grown steadily throughout human history.
b. Human populations are now growing explosively.
c. Human population growth can be represented by a J-shaped curve.
d. Humans have been able to alter the
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Human beings, like other K-selected species live close to carrying capacity and usually have logistic growth rates. However, population growth for humans has exhibited exponential growth for over the last 350 years (since the Industrial Revolution). Which of the following can explain this phenomenon?
Select one:
a. Humans have been able to achieve their biotic potential.
b. Humans have increased environmental resistance by limiting density-dependent factors
c. Humans have been able to continually increase their carrying capacity.
d. Humans have decreased environmental resistance by increasing density-independent limiting factors.
Why is the world population increasing?
Select one:
a. Women in developing countries are continuing to have more children, thereby increasing the global fertility rate.
b. Advances in medical technology are allowing the world population to live longer and decrease infant mortality.
c. The global birth rate is continuing to surpass the death rate.
d. A significant portion of the global population is getting older and retiring earlier.
A population that grew in close relation to the amount of resources available in the environment, would experience
A. exponential growth, such as shown on the J-shaped curve
B. logistic growth, such as shown on the S-shaped curve
C. unpredictable growth, such as shown on the ?-shaped curve
D.logistic growth, such as shown on the J-shaped curve
E. exponential growth, such as shown on the S-shaped curve
Chapter 23 Solutions
Human Biology: Concepts and Current Issues
Ch. 23 - Prob. 1QCCh. 23 - Prob. 2QCCh. 23 - What are the components of an ecosystem?Ch. 23 - Prob. 2CRCh. 23 - Describe what happens to a country as it undergoes...Ch. 23 - Define zero population growth and explain why it...Ch. 23 - Prob. 5CRCh. 23 - Prob. 6CRCh. 23 - Prob. 7CRCh. 23 - Explain why the water cycle is essential to all...
Ch. 23 - Discuss the importance of the carbon cycle.Ch. 23 - Discuss the phosphorus cycle and its importance.Ch. 23 -
1. Your college campus, including all the humans...Ch. 23 -
2. Which of the following will affect the biotic...Ch. 23 - A population is growing at a rate of 2% per year....Ch. 23 - Which of the following statements is false? a. The...Ch. 23 - The large intestine of humans is populated by a...Ch. 23 -
5. Which of the following characterizes mature...Ch. 23 - Which statement about the human fertility rate is...Ch. 23 -
6. _____ flow(s) one-way through ecosystems while...Ch. 23 - All of the following terms can appropriately...Ch. 23 -
8. A human maintaining a vegan diet (containing...Ch. 23 - All of the following processes are involved in the...Ch. 23 - Prob. 12TYCh. 23 - Prob. 13TYCh. 23 -
12. Which biogeochemical cycle does not include...Ch. 23 - Prob. 15TYCh. 23 - Given absolutely no environmental resistance, how...Ch. 23 - Prob. 2AWKCh. 23 - Prob. 4AWKCh. 23 - Prob. 5AWKCh. 23 - Prob. 6AWKCh. 23 - Prob. 7AWKCh. 23 - Least developed countries tend to be poorer than...
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- Which of the following is a factor that would decrease the size of a population? A. Death rate is higher than the birth rate B. Abundant food supply C. Immigration D. Birth rate is higher than the death ratearrow_forwardUse this graph of the idealized exponential and logistic growth curves to complete the following. a. Label the axes and curves on the graph.b. What does the dotted line represent? c. For each curve, indicate and explain where population growth is the most rapid. d. Which of these curves better represents global human population growth?arrow_forward(A) G= N K – N) K (C) (B) (х-аxis) Question: Which of the lines/curves best represents global human population growth? a. Curve B b. none c. Line C d. Curve A (y-axis)arrow_forward
- How have urban-rural inequalities evolved in China in recent years? a. They have been completely eradicated due to government policies. b. They have been significantly reduced but new inequalities in areas such as education and housing are emerging. c. They have worsened, with rural areas becoming more impoverished. d. They have stayed consistent, with no major changes observedarrow_forwardWhat do bioarchaeologists do? A. They identify population trends by looking at skeletal material. B. They only look at ancient artifacts to study past populations. C. None of these are correct D. They identify population trends by looking at prehistoric living structures.arrow_forward1.) At approximately what year did the human population enter an exponential growth phase? 2.) Prior to that time, what was the approximate carrying capacity of Earth? 3.) State three significant technological developments that have acted to increase the carrying capacity of Earth’s environment since that time. 4.) Provide two examples of density-dependent factors that are contributing to or have the potential to contribute to environmental resistance in human populations.arrow_forward
- Answer these questions A) A population of 25 animals is growing exponentially, and the population has a growth rate of 0.7. How big would the population be after 5 years? B) What's the difference between exponential and logistic growth?arrow_forwardChoose the following term that corresponds with the definitions listed below. a. Biotic potential b. Exponential growth c. Logistic Growth d. Carrying capacity 1. A growth pattern that forms a S-shaped curve ________ 2. Theoretical highest possible reproductive capacity of a population given little to no environmental resistance ________ 3. A growth pattern that forms a J-shaped curve __________ 4. The theoretical population size that a fiven region can sustain over a prolonged time period ____________arrow_forwardGrowth rate of a population is determined by: A. The increase in the number of people per unit of time. B. The number of people being born minus the number of people dying. C. The number of children living per each two adults. D. The number of people times the number of children each one has per year.arrow_forward
- When an environment has reached its carying capacity for a certain population, which of the following is true? A. Growth and immigration rate is equal to death and emigration rate. B. Growth and immigration rate is greater than death and emigration rate. C. Growth and immigration rate is less than death and emigration rate. D. Growth rate is exponential. Answer Why do you believe this is the correct answer.arrow_forwardWhich of the following stages of human population growth was characterized by extremely slow growth rates (about 0.0001% per year), and ranged from only 10,000 to over 5 million individuals? A. stage I (hunter/gatherer societies, without agriculture or machine industries) B. stage I (agricultural societies, without machine industries) C. stage III (industrial societies, but without widespread computer technology) D. stage IV (modern societies, with computer technology) E. all of the abovearrow_forwardWhat do bioarchaeologists do? A. None of these are correct B. They identify population trends by looking at prehistoric living structures. C. They identify population trends by looking at skeletal material. D. They only look at ancient artifacts to study past populations.arrow_forward
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