BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 40, Problem 8SA
Summary Introduction
Introduction:
Three trends promoted the increase of human population. The first trend is the expansion of humans into new habitats. The second trend is the development of various types of new technologies that increased the
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What would happen to the human population if the number of births becomes equal to the number of deaths?a. The human growing rate would be 1.1% per year.b. The human population curve would acquire a J-shape.c. The Earth’s carrying capacity would decrease.d. The human population would stop growing
The 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 resources
What 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.
Chapter 40 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 40 - Most commonly, individuals of a natural population...Ch. 40 - The rate at which population size grows or...Ch. 40 - Suppose 200 fish are marked and released in a...Ch. 40 - Prob. 4SACh. 40 - For a given species, the maximum rate of increase...Ch. 40 - _______ is a density-independent factor that...Ch. 40 - Prob. 7SACh. 40 - Prob. 8SACh. 40 - Compared to the less developed countries, the...Ch. 40 - An increase in infant mortality will _______ a...
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- The demographic transition model predicts a decline in population during the ________stage a. preindustrial c. industrial b. transitional d. postindustrialarrow_forwardFigure 45.16 Age structure diagrams for rapidly growing, slow growing, and stable populations are shown in stages 1 through 3. What type of population change do you think stage 4 represents?arrow_forwardPopulation _______________ is the number of individuals of a species per unit of habitat area or volume at a given time. (a) dispersion (b) density (c) survivorship (d) age structure (e) demographicsarrow_forward
- A human population of 10,000 individuals has a birth rate of 90 per every 1000 persons and a death rate of 16 per every 1000 individuals. Calculate the yearly increase of the population growth. a) 740 individuals/year b) 74 individuals/year c) 10,074 individuals/year d) 11,074 individuals/yeararrow_forwardWhen 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_forwardDuring exponential growth, a population always(A) has a constant per capita population growth rate.(B) quickly reaches its carrying capacity.(C) cycles through time.(D) loses some individuals to emigrationarrow_forward
- 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_forwardThe 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.arrow_forwardIn the past two decades, the human population growth rate has: a) remained steady b) increased c)decreasedarrow_forward
- Which 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_forwardBased on current growth rates, Earth’s human population in2019 will be closest to(A) 2.5 million.(B) 4.5 billion.(C) 7.5 billion.(D) 10.5 billionarrow_forwardWhich statement about population growth is true? A. Population growth models do not apply to humans. B. Population growth can be exponential for only as long as environmental conditions are favorable. C. Population growth can continue indefinitely. D. Population growth of field samples always has a λ of approximately 1.arrow_forward
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