Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 56, Problem 7TY
Summary Introduction
Introduction: The change in
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Given that fertility rate is defined as each woman producing exactly enough offspring to replace herself and her offspring’s father, if the fertility rate is sustained for a generation, then which of the following is true?
Select one:
a. r > 1
b. 0 < r < 1
c. r = 0 and there is zero population growth
d. r = 1
45. Calculate the approximate doubling time for a population growing at 1.0% per year.
A. about 70 years
B. about 35 years
C. about 14 years
D. about 5 years
E. about 1 year
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- Calculate the generation time given the following population data: Ro = 0.601, r = -0.05, [xlxmx = 6.4, mx = 0.96 A. -128 B. 0.15 C. 1.60 D. 6.67 E. 10.6arrow_forwardIn the exponential model, starting with 10 individuals and r= 2, what will my population size look like in 5 timesteps? O a. 0 а. O b. 10,000 Ос 10 х е^10 O d. 5xe^10arrow_forwardA population grows in discrete time according to the logistic growth equation. At time t, the population is 50 individuals. If k is 100 and r is 1.5, what is the population size after 50 generations? (please round to the nearest whole number) О а. 96 b. O c. 100 O d. 88 е. 120 f. 50arrow_forward
- There is a population with 1 Gg, 1 gg, and 10 GG genotypes. What is the frequency of the gg genotype? A. 0.12 b. 0.20 c. 0.08 d. 0.04 e. There is no way to calculatearrow_forward3. Calculate the approximate doubling time for a population growing at 7.0% per year. A. about 1 year B. about 5 years C. about 7 years D. about 10 years E. about 60 yearsarrow_forward.If the birth rate is 0.9 and the death rate is 0.2 which of the following is true Group of answer choices a. r=1.1, the population is stable b. r = 0.7 the population is shrinking c. r = 1.1, the population is growing d. r = 0.7 the population is stable e. r = 0.7 the population is growingarrow_forward
- A population has 1000 juvenile individuals, 100 young adult individuals, and 10 older adult individuals. This population is likely…? Group of answer choices a, increasing b. decreasing c. stable d. no way to tellarrow_forwardWhat is the "2" stand for in the following equation? Nt= No x 2n a.The rate of growth- the population doubles with each generation b.How many individual cells there after a given time c.The dilution factor of each individual serial dilution d.How many generations there arearrow_forwardAccording to Thomas Malthus, at what rate is the population increasing? a naturally b linearly c slowly d exponentiallyarrow_forward
- A population grows in discrete time according to the logistic growth equation. At time t, the population is 50 individuals. If K is 100 and r is 1.5, what is the population size at t+1 (the next timestep)? (please round to the nearest whole number) О а. 96 O b. 50 О. 81 O d. 100 е. 88 f. 120arrow_forward1 Refer to the following to answer the two questions that follow: A population begins with 100 individuals who have the genotype Aa. After 10 generations of breeding, there are 20 AA, 40 Aa, and 40 aa. 24. How many A and a alleles are present after 10 generations? Use the method you used in the allele frequency simulation. a. 80 A; 80 a b. 60 A; 120 a ✓ c. 40 A; 80 a d. 80 A; 120 a e. 120 A; 80 a leles after 10 generations? Use the method you used in thearrow_forwardPopulations are evolving if A. the Hardy-Weinberg equation equals 1. B. the Hardy-Weinberg equation equals 0. C. p + q changes between generations. D. p + q remains the same between generations.arrow_forward
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