Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 27, Problem 4RQ
Summary Introduction
To explain:
The term environmental resistance and also distinguish between the density independent and density dependent forms of environmental resistance. And also describe three example of each.
Introduction:
Growth curve represents the population growth with each period of time. Growth curve can be demonstrated by two types of growth curve: J shaped growth curves and sigmoid growth curve. The J shaped growth curves represent the unrestricted or exponential population growth while sigmoid growth curve represents the slow or restricted growth of population. The optimum
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Chapter 27 Solutions
Biology
Ch. 27.1 - Prob. 1CSCCh. 27.1 - Prob. 1HYEWCh. 27.1 - The Return of the Elephant Seals Female elephant...Ch. 27.1 - Prob. 1CYLCh. 27.1 - describe how the growth rate interacts with...Ch. 27.1 - Prob. 3CYLCh. 27.2 - What factors might make these population data...Ch. 27.2 - Prob. 2TCCh. 27.2 - What benefits does mass emigration give to animals...Ch. 27.2 - Prob. 1CSC
Ch. 27.2 - Prob. 1CYLCh. 27.2 - Prob. 2CYLCh. 27.2 - Prob. 3CYLCh. 27.3 - Prob. 1CYLCh. 27.3 - Prob. 2CYLCh. 27.3 - Prob. 3CYLCh. 27.4 - Prob. 1CYLCh. 27.4 - Prob. 1CTCh. 27.5 - Prob. 1TCCh. 27.5 - Prob. 2TCCh. 27.5 - Prob. 3TCCh. 27.5 - describe the advances that have allowed...Ch. 27.5 - explain why rapid population growth continues...Ch. 27.5 - Prob. 3CYLCh. 27.5 - Prob. 4CYLCh. 27 - Prob. 1MCCh. 27 - Prob. 2MCCh. 27 - Prob. 3MCCh. 27 - Prob. 4MCCh. 27 - Prob. 5MCCh. 27 - Prob. 1FIBCh. 27 - The type of growth that occurs in a population...Ch. 27 - Prob. 3FIBCh. 27 - The type of spatial distribution likely to occur...Ch. 27 - Prob. 5FIBCh. 27 - Prob. 1RQCh. 27 - Prob. 2RQCh. 27 - Draw, name, and describe the properties of a...Ch. 27 - Prob. 4RQCh. 27 - What is logistic population growth? What is K?Ch. 27 - Prob. 6RQCh. 27 - Distinguish between populations showing concave...Ch. 27 - Prob. 8RQCh. 27 - Prob. 9RQCh. 27 - Prob. 1ACCh. 27 - Prob. 2AC
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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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