Study Guide for Campbell Biology
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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Chapter 54, Problem 2SYK

Community ecologists develop models or hypotheses to describe community structure and the factors that contribute to such structure. Briefly explain the following models described in this chapter.

  1. a. Competitive exclusion
  2. b. Energetic hypothesis
  3. c. Bottom-up model
  4. d. Top-down (trophic cascade) model
  5. e. Nonequilibrium model
  6. f. Intermediate disturbance hypothesis
  7. g. Island equilibrium model
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The figure below shows the growth of two species in two habitats, both when the other species is present and when it is absent. What kind of interaction is occurring between these two species? (Consider both habitats, not just the interaction within one particular habitat.) Answer choices:  A. Mutualism B. Conditional C. Commensalism D. Competition E. Parasitism
Question 1   Neutral models emphasize dispersal and chance.   Question 1 options:   A) True   B) False   Question 2     Environmental filtering reduces competition.   Question 2 options:   A) True   B) False   Question 3  If competition structures a community, then ____________.   Question 3 options:   A)  niches should be widely separated in niche space.   B)  niche space should be neutral.   C)  the environment does not filter species.   D)  there is no niche overlap among species.
Choose the following term that corresponds with the definitions listed below. a. Biotic potential b. Exponential growth c. Logistic Growth d. Carrying capacity 1. A growth pattern that forms a S-shaped curve ________ 2. Theoretical highest possible reproductive capacity of a population given little to no environmental resistance ________ 3. A growth pattern that forms a J-shaped curve __________ 4. The theoretical population size that a fiven region can sustain over a prolonged time period ____________

Chapter 54 Solutions

Study Guide for Campbell Biology

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