Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 45, Problem 15RQ
A forest fire is an example of regulation.
- density-dependent
- density-independent
- r-selected
- K-selected
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A forest fire is an example of ________ regulation. a. density-dependent b. density-independent c. r-selected d. K-selected
Density-dependent factors __________.
have a greater impact at higher population densities
are less important for regulating population size than density-independent factors
act at the community level
cause decreases in numbers of species in an ecosystem as a result of temperature extremes
Under the Disturbance Selection model, r-selected individuals live in what kind of habitat?
Question 9 options:
High stress, low disturbance
Stable
Highly disturbed
Low stress, high disturbance
None of these
Chapter 45 Solutions
Biology 2e
Ch. 45 - Figure 45.2 As this graph shows, population...Ch. 45 - Figure 45.10b If the major food source of the...Ch. 45 - Figure 45.16 Age structure diagrams for rapidly...Ch. 45 - Which of the following methods will tell an...Ch. 45 - Which of the following is best at showing the life...Ch. 45 - Humans have which type of survivorship curve? Type...Ch. 45 - How is a clumped population distribution...Ch. 45 - Which of the following is associated with...Ch. 45 - Which of the following is associated with multiple...Ch. 45 - Which of the following is associated with the...
Ch. 45 - Species with limited resources usually exhibit...Ch. 45 - The maximum rate of increased characteristic of a...Ch. 45 - The population size of a species capable of being...Ch. 45 - Species that have many offspring at one time are...Ch. 45 - A forest fire is an example of regulation....Ch. 45 - Primates are examples of: density-dependent...Ch. 45 - Which of the following statements does not support...Ch. 45 - Which of the following events would not negatively...Ch. 45 - A country with zero population growth is likely to...Ch. 45 - Which type of country has the greatest proportion...Ch. 45 - Which of the following is not a way that humans...Ch. 45 - The first species to live on new land, such as...Ch. 45 - Which type of mimicry involves multiple species...Ch. 45 - A symbiotic relationship where both of the...Ch. 45 - Which of the following is not a mutualistic...Ch. 45 - The ability of rats to learn how to run a maze is...Ch. 45 - The training of animals usually involves...Ch. 45 - The sacrifice of the life of an individual so that...Ch. 45 - Why are polyandrous mating systems more rare than...Ch. 45 - Describe how a researcher would determine the size...Ch. 45 - The CDC released the following data in its 2013...Ch. 45 - Why is long-term parental care not associated with...Ch. 45 - Describe the difference in evolutionary pressures...Ch. 45 - Describe the rate of population growth that would...Ch. 45 - Describe how the population of a species that...Ch. 45 - Give an example of how density-dependent and...Ch. 45 - Describe the age structures in rapidly growing...Ch. 45 - Since the introduction of the Endangered Species...Ch. 45 - Describe the competitive exclusion principle and...Ch. 45 - Jaguars are a keystone species in the Amazon....Ch. 45 - Describe Pavlov’s dog experiments as an example of...Ch. 45 - Describe the advantage of using an aural or...
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- The population size of a species capable of being supported by the environment is called its ________. a. limit b. carrying capacity c. biotic potential d. logistic growth patternarrow_forwardThe per capita growth rate of a population where dispersal is not a factor is expressed as (a) i + e (b) b d (c) dN/dt (d) rN(K N) (e) (K N) Karrow_forwardA sudden natural catastrophe resulting in massive die-offs would be categorized as a density-________ limiting factor. Select one: Autonomous Reliant Dependent Independentarrow_forward
- The size of the population of a species in an ecosystem is determined by the ___________ factors and _____________ factors.arrow_forwardWhen an organisms exhibits ___________ growth its _________ is constant. determinate, fertility determinate, fecundity none of the options are correct indeterminate, fitness indeterminate, fecundity Which of the following does not represent a density-dependent factor of population regulation? competition for resources crowding forest fire disease outbreak none of the options are correctarrow_forwardA gypsy moth population has overtaken a grove of oak trees. The gypsy moths eat the trees, causing the trees to die. What type of density-dependent factor would the gypsy moths be considered? predation disease and parasites competition physiological changearrow_forward
- A/An ____________ is an ecological relationship where one party benefits and the other is unaffected.arrow_forwardwhich help stabilize a community? presence of keystone and dominant species high conectivity aming species in community large number of different species in community all tend to do destabilize community all help stabilize communityarrow_forwardPredict the outcome of a population exceeding the carrying capacity of the environment. Provide a specific example (may be hypothetical).arrow_forward
- nonmigratory wildebeest populations are limited, mainly by factors that are a.) density independent, top down b.) density independent, bottom up. c.) density dependent, top down d.) density dependent, bottom uparrow_forwardWhat is the relationship between population density and available resources? exponentially proportional There is no relationship. directly proportional inversely proportionalarrow_forwardWhich of the following is the term for the upward growth of a population? Select one: A. Predator-prey interactions B. Biotic potential C. Abiotic limitations D. Environmental resistance E. Transcendent growtharrow_forward
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