EBK BIOLOGY: CONCEPTS AND APPLICATIONS
9th Edition
ISBN: 8220100477805
Author: STARR
Publisher: CENGAGE L
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Chapter 40, Problem 3CT
Summary Introduction
To determine:
The growth rate of two given populations and the social and economic problems which these populations are facing and will face in the coming future.
Introduction:
Human population is growing at a tremendous rate. Increase in medical facilities and technologies have helped to increase world population, while the essential
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Determine the birth and death rate of each.
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explain why a population that fits the logistic growthmodel increases more rapidly at intermediate size thanat relatively small and large sizes
Chapter 40 Solutions
EBK BIOLOGY: CONCEPTS AND APPLICATIONS
Ch. 40 - Prob. 1SQCh. 40 - The rate at which population size grows or...Ch. 40 - Suppose 200 fish are marked and released in a...Ch. 40 - Prob. 4SQCh. 40 - For a given species, the maximum rate of increase...Ch. 40 - _______ is a density-independent factor that...Ch. 40 - Prob. 7SQCh. 40 - Prob. 8SQCh. 40 - Compared to the less developed countries, the...Ch. 40 - An increase in infant mortality will _______ a...
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- Describe the three main types of dispersion patterns that can be observed in populations. Discuss at least one factor that might lead to each pattern.arrow_forwardReview the age structure graphs shown in Figure 5-15. How do patterns in the graphs indicate the rate that a population is increasing or decreasing?arrow_forwardName two density-dependent and two densityindependent factors that can limit the size of a population.arrow_forward
- Which compares to the age structure of less developed and higher developed countries, specifying the x and y axis. Give an example of natioins with these types of age structure diagrams. What does a high fertility rate tell you about the future of this population.arrow_forwardExamine the age structure diagram. This diagram best represents a population that is: 100+ Male Female 01% |0.2% C.6% 95-99 9D-94 03% 1.% 19% 22% 1.3% 75-79 1.7% 70-74 23% 2.7% 65-69 2.7% 3.0% 60-64 3.0% 3.3% 55-59 3.5% 3.7% 5D-54 3.8% 3.9% 4549 4.0% 39% 4044 3.6% 3.8% 35-39 3.4% 3.4% 3D 34 3.0% 2.9% 25-29 2.8% 2.6% 2D24 2.% 2.5% 15-19 2.5% 2.4% 10-14 2.6% 2.5% 5-9 25% 2.5% 2.0% 2% 4% 0-4 22% 10% 10% Southern Europe - 2019 Population: 152,446,950 PopulalionPyramid.net growing quickly growing slowly not growing/is stable decliningarrow_forwardDescribe three demographic factors that can influence the age structure of a population.arrow_forward
- Draw a graph with a growth curve for a population that starts at 10 individuals and experiences exponential growth. Draw a second graph with a growth curve for a population that starts with 10 individuals and undergoes logistic growth. The second graph should have a carrying capacity of 100 individuals. Please give a proper written explanation for the graphs.arrow_forwardA population of grey squirrels started with one pair and grows logistically with annual r = 1 and K = 42. Use the logistic growth equation to predict the population size 14 years after the first pair arrived.arrow_forwardIdentify examples of evidence that a population has a size that is density dependent. The number of progeny per adult decreases as population density increases. A population's resources and potential mates are insufficient for all individuals. A population is devastated by extremely cold temperatures every few years. The maximum population limit increases as population density decreases.arrow_forward
- In populations of many organisms there is an inverse relationship between the density of individuals (number per area) and the average size of the individuals. True or False?arrow_forwardThe following equation is used to calculate the population growth rate, Ro, per generation from a life table. Iy is survival probability from birth to age x and my is fecundity at age x. Ro = Elkm Multiplying ly and my and summing it over all age categories in the life table gives the population growth rate per generation because: Calculating the reproductive output for each age class requires considering the survival probability to that age (a dead individual does not reproduce) and the fecundity at that age by multiplying them with each other. Summing over reproductive output for all age classes gives the total per capita growth rate of the population The fecundity at each age is lower when the survival is higher because of energy constraints. Multiplying probability of survival and fecundity in each age class takes this trade-off into account. Summing over reproductive output for all age classes gives the total per capita growth rate of the population The resulting type of growth…arrow_forwardHelp mearrow_forward
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