Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780134153742
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Textbook Question
Chapter 27, Problem 4RQ
Define environmental resistance and distinguish between density-independent and density-dependent forms of environmental resistance. Describe three examples of each.
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Chapter 27 Solutions
Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 27 - Density-independent environmental resistance...Ch. 27 - Prob. 2MCCh. 27 -
3. Which of the following did not contribute to...Ch. 27 - Prob. 4MCCh. 27 - Boom-and-bust populations a. do not experience...Ch. 27 - Graphs that plot how the numbers of individuals...Ch. 27 -
2. The type of growth that occurs in a population...Ch. 27 - The maximum population size that can be sustained...Ch. 27 - The type of spatial distribution likely to occur...Ch. 27 - A population grows whenever the number of plus...
Ch. 27 -
1. Define biotic potential, list the factors that...Ch. 27 - Write and describe the meaning of the equation for...Ch. 27 - 3. Draw, name, and describe the properties of a...Ch. 27 -
4. Define environmental resistance and...Ch. 27 -
5. What is logistic population growth? What is...Ch. 27 - Describe three different possible consequences of...Ch. 27 - Prob. 7RQCh. 27 -
8. Explain why environmental resistance has not...Ch. 27 -
9. Draw the general shape of age structure...Ch. 27 - Sketch and label the graph showing the general...Ch. 27 -
1. Research a developing country (such as...Ch. 27 -
2. The U.S. Endangered Species Act (ESA) seeks to...
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- A forest fire is an example of ________ regulation. a. density-dependent b. density-independent c. r-selected d. K-selectedarrow_forwardRead each situation in the chart below. Then, state if it is a density-independent limiting factor or a density-dependent limiting factor. Then, state the specific limiting factor that is occurring. The first one is done for you as an example. SITUATION Dependent - Independent or Density-Dependent Limiting Factor Mrs. Engelbrecht has 32 students assigned to her Biology Class, but she only has room for 28. Because the room is crowded, the extra 4 students leave room to go to Guidance and have their schedules changed. Density- Dependent Emigration Northern pike (it’s a fish) feed on another fish, the yellow perch. An increase in the yellow perch population causes an increase in the northern pike population. Density- Dependent The BP oil spill in the Gulf of Mexico has harmed many aquatic organisms that live in the Gulf region. Density- Independent A new strain of influenza (the flu) breaks out in New York City Density- Dependent A…arrow_forwardDistinguish between the exponential and logistic growth of a population and describe the nature of their growth curves. Define environmental resistance. What is the carrying capacity of an environment? Define and give an example of a population crash.arrow_forward
- Would you give a real life example (not hypothetical) of crude density and ecological density?arrow_forwardWhich of the following is an "ecological" variable, that is, an exposure or an outcome that needs to be examined using ecological study designs?arrow_forwardThe logistic model incorporates carrying capacity to make the model exponentialarrow_forward
- The purpose of the experiment is to study how_______(IV) affects the ______(DV). Explain the background of the experiment. Include examples of lilting factors and explain how the limiting factors affect the carrying capacity of a population.arrow_forwardDefine density-dependent and also define density-independent mortality factors, and give one different specific example (from Nature) of each mortality factor.arrow_forwardDo human activities play a large role in density dependent or density independent limiting factors for populations of organisms? Provide specific examples, justify your respondingarrow_forward
- Fixed effort harvesting and fixed quota harvesting are two very different approaches to fishing, hunting, and timber harvest. Describe each and describe how each affects the population being harvested.arrow_forwardExplain what carrying capacity means and give the similarities/differences for exponential growth and logistic growth along with the factors that might affect them. will upvote if correctarrow_forwardDiscuss adjusted/lowered ecological footprint measurement and what hypothetical lifestyle to achieve better result.arrow_forward
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