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 13RQ
The
- limit
carrying capacity - biotic potential
logistic growth pattern
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The biotic potential (r) of a species will;
Rise when there is an increase in food
Remain constant regardless of the situation
Decrease when competition is high
Decrease as the population approaches carrying capacity
The four key attributes of community structure are
total number of species
top-down and bottom-up effects
trophic cascades
the sum of interactions among all species
physical attributes of a community, including biotic and abiotic factors
primary producers
species relative abundance
A keystone species is not necessarily abundant in a community but has a large impact on surrounding species and community structure.
True
O False
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_forwardWhich of the following methods will provide information to an ecologist about both the size and density of a population? a. mark and recapture b. mark and release c. quadrat d. life tablearrow_forward
- This is wildlifearrow_forwardSpecies richness quantifies the amount of money each species is valued at on the biodiversity stock exchange the relative abundance of species in a community. the number of species in a community the combination of the number of species in a community and their relative abundancesarrow_forwardA species that feeds on herbivorous species is called a tertiary consumer. keystone species. secondary consumer. primary consumer.arrow_forward
- Communities are often described by the major predator relationships present. the trophic levels represented by the most species. the abiotic factors that result in the dominant vegetative type. the dominant species that live within the community.arrow_forwardExplain how the following statement relates to carrying capacity: Demand can only be satisfied by consuming the resource base itself. We call this overcutting, overfishing, overgrazing, overpumping, and overplowingarrow_forwardSome Terms Related to Growth Patterns Biotic potential Exponential growth Logistic growth Carrying capacity A growth pattern that forms an S-shaped curve. Answer Theoretical highest possible reproductive capacity of a population given little to no environmental resistance. Answer A growth pattern that forms a J-shaped curve. Answer The theoretical population size that a given region can sustain over a prolonged time period. Answerarrow_forward
- As population densities approach the carrying capacity what are two biotic factors that would increase? O predation disease resources natural disastersarrow_forwardTaking all factors into account, rank the following for likelihood of bioaccumulation: bald eagles, osprey, seals, and northern harriers.arrow_forwardOne hundred trout are seeded into a lake. Absent constraint, their population will grow by 70% a year. The lake can sustain a maximum of 2000 trout. Using the logistic growth model, calculate the number of trout after 5 years. 992 850 439 678arrow_forward
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