Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 53, Problem 20TYK
The demographic transition is the gradual shift from
- a. Type III survivorship curve to a Type I curve.
- b. iteroparity to semelparity.
- c. an age structure skewed toward the younger ages to an even age distribution.
- d. high birth rates and high death rates to low birth rates and low death rates.
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TypeIII survivorship curve indicates:a.low juvenile mortality and high mortality in older adults.b.high juvenile mortality and low mortality in older adults.c.low juvenile mortality and low mortality in older adults.d.high juvenile mortality and high mortality in older adults.e.equal chance of dying at any age.
TypeII survivorship curve indicates:a.low juvenile mortality and high mortality in older adults.b.high juvenile mortality and low mortality in older adults.c.low juvenile mortality and low mortality in older adults.d. high juvenile mortality and high mortality inolder adults.e.equal chance of dying at any age.
In a type I survivorship curve, mortalitya. rises steeply later in life.b. is the same at any age.c. cannot be predicted by age.d. is concentrated before reproduction.
Chapter 53 Solutions
Study Guide for Campbell Biology
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- The maximum rate at which a population could increase under ideal conditions is known as its (a) total fertility rate (b) survivorship (c) intrinsic rate of increase (d) doubling time (e) age structurearrow_forwardWhich of the following forces can de-stabilize a population, resulting in a unstable equilibrium? a. short time lags in birth rates or death rates b. inverse density dependence c. density-dependent natality d. moderate competition e. density-dependent mortalityarrow_forwardFor the unicorn shrimp population shown in the cohort life table below, what type of survivorship curve best describes this population? A. Type I B. Type II C. Type III D. Geometric E. Logisticarrow_forward
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- Carrying capacity is defined as a species’ average population size in an environment. Which of the following resulted to exceeding carrying capacity in a particular environment? a. increasing birthrates, decreasing deathrates, increasing immigration and no emigration takes place b. increasing birthrates, decreasing deathrates, decreasing immigration and no emigration takes place c. increasing birthrates, decreasing deathrates, decreasing immigration and increasing emigration d. decreasing birthrates, increasing deathrates, increasing immigration and increasing emigrationarrow_forwardstochasticity is a result of I temporal variation in demographic rates O a. demographic O b. environmental and demographic C. sex-bias O d. environmentalarrow_forwardA type I survivorship curve is characterized by _______________. Question 31 options: A) low infant mortality, then low survival. B) a constant mortality rate. C) high infant mortality, then high survival. D) a long lifespan. Most populations are regulated by a single factor. Question 35 options: A) True B) Falsearrow_forward
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