EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
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Chapter 57, Problem 3TY
Summary Introduction
Introduction: Competitive exclusion hypothesis states that two species that are competing for the same
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Which of the following statements is correct regarding the competitive exclusion concept?
a.
multiple species can’t share the exact same niche within a community
b.
the realized niche of a species is different from its fundamental niche.
c.
competition within a population results in the success of the best-adapted individuals.
d.
two species cannot coexist within the same habitat.
According to the competitive exclusion principle,a. one species is always more competitive than another for a particular food source.b. competition excludes multiple species from using the same food source.c. no two species can occupy the same niche at the same time.d. competition limits the reproductive capacity of species.
Ecological dominants are
a. the most numerous or make up the most biomass within a community.
b. are species that may not be the most numerous within a community, but whose role is so significant that its absence would bring about considerable change.
c. species that are introduced into an area where they do not naturally occur.
d. the most important species on the planet.
Chapter 57 Solutions
EBK BIOLOGY
Ch. 57.1 - Prob. 1CCCh. 57.1 - Prob. 2CCCh. 57.1 - Prob. 1EQCh. 57.1 - Prob. 2EQCh. 57.1 - Prob. 3EQCh. 57.2 - Prob. 1CCCh. 57.2 - Prob. 2CCCh. 57.2 - (a) A quahog clam, cless Bavalvia (b) A chlton,...Ch. 57.2 - Prob. 3CCCh. 57.2 - Prob. 4CC
Ch. 57.2 - Prob. 2BCCh. 57.2 - Core Skill: Connections More than 4,500 species of...Ch. 57.3 - Prob. 1CCCh. 57.3 - Prob. 1BCCh. 57.3 - Prob. 2BCCh. 57.4 - Prob. 1CCCh. 57 - Prob. 1TYCh. 57 - Prob. 2TYCh. 57 - Prob. 3TYCh. 57 - In Lacks study of passerine birds in Britain,...Ch. 57 - Prob. 5TYCh. 57 - Prob. 6TYCh. 57 - Prob. 7TYCh. 57 - Prob. 8TYCh. 57 - Prob. 9TYCh. 57 - Prob. 10TYCh. 57 - Prob. 1CQCh. 57 - Prob. 2CQCh. 57 - Prob. 1COQCh. 57 - Prob. 2COQCh. 57 - Prob. 3COQ
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- Which of the following defines the role of a species in a community,including its habitat and interaction with other species?a. ecological niche d. mimicryb. competitive exclusion e. None of these are correct.c. competition levelarrow_forwardUnder what conditions can the realized niche of a species exceed its fundamental niche? a. never b. when the species is transported out of its natural geographic range c. when the species experiences mutualistic interactions with another species d. when the species is relieved of competition with another species e. all of the above (except for never)arrow_forwardWhich of the following is the definition for species richness? A. The number of species in a community. B. The relative abundance and species richness in a community. C. The number of dominant species in a community. D. The proportion of a given species in the community.arrow_forward
- Which of the following is not true of a population of largepredators in a small reserve?a. The species may disappear from the reserve.b. The species will probably undergo a populationexplosion.c. The species will probably lose genetic diversity.d. The species may overeat its prey, causing a reduction inprey population.arrow_forwardCompetitive exclusion occurs under the following conditions: a. when fundamental niches overlap and competition is asymmetric b. when realized niches overlap and competition is asymmetric c. when fundamental niches overlap and competition is symmetric d. when realized niches overlap and competition is symmetric e. when competition is excluded because niches do not overlaparrow_forwardThe relative abundance of any one species within a community of many species is known as a. species evenness. b. species richness. c. specialization. d. population.arrow_forward
- Inthe Lotka-Volterra predation model, a prey (host) population in the absence ofpredators would:a.grow exponentially.b.grow logistically.c.grow exponentially, and then crash when it has outstripped its own foodsupply.d.decline to extinction.e.the model makes no assumptions about what happens in the absence ofpredators.arrow_forwardStudies that demonstrate that species living in an ecological community change independently of one another in space and time a. indicate that the species arrived in the community at different times. b. indicate that the species’ realized niches are regulated by different aspects of the environment. c. suggest species interactions are the sole determinant of which species coexist in a community. d. None of the choices is correct.arrow_forwardThe 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. Parasitismarrow_forward
- JosephConnell’s “intermediate disturbance hypothesis” proposes that:a.species diversity is highest at intermediate frequencies of disturbance.b.species diversity is lowest at intermediate frequencies of disturbance.c.population growth rates are highest at intermediate frequencies ofdisturbance.d.competitive exclusion is fastest at intermediate levels of disturbance.e.none of the choices apply.arrow_forwardWhich of the following defines the role of a species in a community,including its habitat and interaction with other species?a. ecological nicheb. competitive exclusionc. competition leveld. mimicrye. None of these are correctbarrow_forwardWhy does the aquarium trade contribute to the introduction of nonnative species? a. Exotic species can escape or be released into local ecosystems. b. Aquarium owners do not always understand how ecosystems interact. c. Nonnative fish are shipped worldwide for aquariums. d. All of the above Please select the best answer from the choices provided A B C Darrow_forward
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