+ At least a few individuals are still present. No individuals are still present. The species may soon go extinct. The population is beginning to shrink in size. Decreasing numbers may be the result of habitat loss. The species will be protected by the Endangered Species Act. The species may recover if it is protected. Threatened Endangered

+ At least a few individuals are still present. No individuals are still present. The species may soon go extinct. The population is beginning to shrink in size. Decreasing numbers may be the result of habitat loss. The species will be protected by the Endangered Species Act. The species may recover if it is protected. Threatened Endangered

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter18: The Biosphere And Human Effects

Section: Chapter Questions

Problem 10SQ

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Similar questions

The 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) K
_______________ competition occurs within a population, and _______________ competition occurs among populations of different species. (a) Interspecific; intraspecific (b) Intraspecific; interspecific (c) Type I survivorship; Type II survivorship (d) Interference; exploitation (e) Exploitation; interference
Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the following would likely occur? a. The carrying capacity of seals would decrease, as would the seal population. b. The carrying capacity of seals would decrease, but the seal population would remain the same. c. The number of seal deaths would increase, but the number of births would also increase, so the population size would remain the same. d. The carrying capacity of seals would remain the same, but the population of seals would decrease.
Figure 45.10b If the major food source of the seals declines due to pollution or overfishing, which of the following would likely occur? The carrying capacity of seals would decrease, as would the seal population. The carrying capacity of seals would decrease, but the seal population would remain the same. The number of seal deaths would increase but the number of births would also increase, so the population size would remain the same. The carrying capacity of seals would remain the same, but the population of seals would decrease.
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 pattern
When an invasive species alters the community structure it is introduced to, what can the consequence be? a. extinction of economically important species b. reduced predation on some native species c. increased predation on some native species d. all of the above
When r is a positive number, the population size is (a) stable (b) increasing (c) decreasing (d) either increasing or decreasing, depending on interference competition (e) either increasing or stable, depending on whether the species is semelparous
The type of place where a species typically lives is called its _______. a. niche c. community b. habitat d. population
An unpalatable species demonstrates its threat to potential predators by displaying (a) character displacement (b) limiting resources (c) cryptic coloration (d) aposematic coloration (e) competitive exclusion
Describe the mechanisms by which human population growth and resource use causes increased extinction rates.
Certain species of parrot cannot be brought to the United States to be sold as pets. What is the name of the legislation that makes this illegal? a. Red List b. Migratory Bird Act c. CITES d. Endangered Species Act (ESA)
Describe the potential effects when a keystone species is removed from a community.