EBK CAMPBELL BIOLOGY
11th Edition
ISBN: 9780134446417
Author: Reece
Publisher: PEARSON
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Chapter 54, Problem 54.5CR
Summary Introduction
To review: The effect of a pathogen in altering the structure of a community.
Concept introduction: Pathogens are microorganisms that cause harm (disease) to other organisms. They comprise bacteria, virus, prions and others. Pathogens play a crucial role in deciding the structure of ecological communities.
Given data:
- Pathogen.
- Keystone species.
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Chapter 54 Solutions
EBK CAMPBELL BIOLOGY
Ch. 54.1 - Explain how competition, predation, and mutualism...Ch. 54.1 - According to the principle of competitive...Ch. 54.1 - MAKE CONNECTIONS Figure 24.14 illustrates how a...Ch. 54.2 - What two components contribute to species...Ch. 54.2 - How is a food chain different from a food web?Ch. 54.2 - Prob. 3CCCh. 54.2 - MAKE CONNECTIONS Rising atmospheric CO2, levels...Ch. 54.3 - Why do high and low levels of disturbance usually...Ch. 54.3 - Prob. 2CCCh. 54.3 - WHAT IF? Most prairies experience regular fires,...
Ch. 54.4 - Describe two hypotheses that explain why species...Ch. 54.4 - Prob. 2CCCh. 54.4 - WHAT IF? Based on MacArthur and Wilson's island...Ch. 54.5 - What are pathogens?Ch. 54.5 - WHAT IF? Rabies, a viral disease in mammals, is...Ch. 54 - Interspecific interactions affect the survival and...Ch. 54 - Based on indexes such as Shannon diversity, is a...Ch. 54 - Is the disturbance pictured in figure 54.25 more...Ch. 54 - How have periods of glaciation influenced...Ch. 54 - Prob. 54.5CRCh. 54 - Prob. 1TYUCh. 54 - The principle of competitive exclusion states that...Ch. 54 - Based on the intermediate disturbance hypothesis,...Ch. 54 - According to the island equilibrium model, species...Ch. 54 - Prob. 5TYUCh. 54 - Prob. 6TYUCh. 54 - Prob. 7TYUCh. 54 - The most plausible hypothesis to explain why...Ch. 54 - Community 1 contains 100 individuals distributed...Ch. 54 - Prob. 10TYUCh. 54 - EVOLUTION CONNECTION Explain why adaptations of...Ch. 54 - Prob. 12TYUCh. 54 - WRITE ABOUT A THEME: INTERACTIONS In Batesian...Ch. 54 - Prob. 14TYU
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- The type of place where a species typically lives is called its _______. a. niche c. community b. habitat d. populationarrow_forwardDescribe what happens to an ecosystem when a keystone species is removed.arrow_forwardWhich cannot be a symbiosis? a. mutualism c. commensalism b. parasitism d. interspecific competitionarrow_forward
- An ecosystem displays ecological stability if it can return to what after an environmental disturbancearrow_forwardGive examples of activities that endanger biodiversity and describe how we can preserve it. (Explain in 15 sentences)arrow_forwardWhich term describes the process whereby toxic substances increase along trophic levels of an ecosystem? a. biomassification b. biomagnification c. bioentropy d. heterotrophyarrow_forward
- An example of abiotic factors impacting the ecosystem?arrow_forwardwhen a natural disaster destroys a stable ecosystem the area is temporarily less stable than before. this is most likely due toarrow_forwardWhich practice would most likely lead to the disruption of an aquatic ecosystem? (A) crop rotation (B) recycling (C) unregulated pesticide use (D) cover croppingarrow_forward
- What type of symbiotic relationship portrays this: When one organism benefits (consumes another organism) and the other population benefits (weaker & older are eaten)? (answer choices: predation, commensalism, parasitism, mutualism)arrow_forwardassess the implications of pollution of marine and wetland environmentsarrow_forwardIf a community within an ecosystem is stable does that mean the entire ecosystem can be considered stable as well?arrow_forward
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