Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 19, Problem 6SQ
Summary Introduction
Introduction: The Human population increasing day by day, the growth rate of human population rising like a rocket in the sky since the industrial revolution. Currently the world population is 7.6 billion. One of the main reason of increasing
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The graph shows the worldwide human population from 1950 to 2050. Data for the future years are predictions.
According to the ideas of Thomas Malthus, what are the predicted changes to the human population after 2050?
A.
The population would continue to increase at the same rate, due to constant food supplies.
B.
The population would increase more rapidly, due to advances in technology.
C.
Eventually the population would stop increasing or would decrease, due to lack of food and living space.
D.
Eventually the population would decrease to zero, because of war, famine, or disease.
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 rate
Three characteristics of a population are the birth rate, growth rate, and death rate. How has each been affected by (a) modern medicine, (b) modern agriculture, and (c) modern industry
Chapter 19 Solutions
Campbell Essential Biology with Physiology (6th Edition)
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- When a population of organisms is evolving, what can you be sure is happening? a. No change is occurring b. It is improving c. It is becoming more human-like d. It is changingarrow_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_forwardWhich of the following statements about human populationsin industrialized countries is incorrect?(A) Birth rates and death rates are high.(B) Average family size is relatively small.(C) The population has undergone the demographictransition.(D) The survivorship curve is Type Iarrow_forward
- Which statement best describes the recovery of the Mexican wolf population? A. It is experiencing logistic growth because the rate of population growth increases without slowing. B. It is experiencing logistic growth because the rate of population growth increases but slows with time. C. It is experiencing exponential growth because the rate of population growth increases without slowing. D. It is experiencing exponential growth because the rate of population growth increases but slows with time.arrow_forwardThe human population growth rate has been getting smaller in the last few decades. Which of the following is the primary cause of this decline? Group of answer choices a. decreasing birth rate b. increasing death rate c. increasing r d. lack of resourcesarrow_forwardAll of the following conclusions can be made about the population represented in the above age pyramid EXCEPT Select one: a. the wide base indicates a high birth rate b. death rates are only high in extreme old age c. the steep sides show the death rate is high for both the young and adults d. life expectancy is low with few people reaching old agearrow_forward
- Which statement is a valid analysis about bison movement and the carrying capacity of Yellowstone National Park? A. The decrease in the northern herd's population is explained by its inability to migrate and the park's decreasing carrying capacity. B. The fact that bison only migrate in years of deep snow indicates that they have exceeded the park's carrying capacity. C. The carrying capacity for other animals found in Yellowstone has increased due to the bison's migration outside of the park. D. The movement of bison beyond park boundaries is not due to the bison population being too large for the park's carrying capacity. Part B: Which selection from the text provides evidence that directly supports this analysis? A. They move to lower elevation ranges during the winter months in response to snow accumulation and snowpack development. B. The model integrates data from several ecosystem-related variables,…arrow_forwardThe concept of development should be broadened to include more than just one factor. briefly Discuss the factors that can be used to describe development in a nation?d) in brief Outline why the culture of a country might influence the costs, risks and benefits of doing business in that country.arrow_forwardA country with zero population growth is likely to be ______. a. in Africa b. in Asia c. economically developed d. economically underdevelopedarrow_forward
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