Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 19, Problem 17RQ
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
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Chapter 19 Solutions
Concepts of Biology
Ch. 19 - Figure 19.2 As this graph shows, population...Ch. 19 - Figure 19.6 If the major food source of seals...Ch. 19 - Figure 19.11 Age structure diagrams for rapidly...Ch. 19 - Which of the following methods will provide...Ch. 19 - Which of the following is best at showing the life...Ch. 19 - Human populations have which type of survivorship...Ch. 19 - Species with limited resources usually exhibit...Ch. 19 - The maximum growth rate characteristic of a...Ch. 19 - The population size of a species capable of being...Ch. 19 - Species that have many offspring at one time are...
Ch. 19 - A forest fire is an example of ________...Ch. 19 - A country with zero population growth is likely to...Ch. 19 - Which type of country has the greatest proportion...Ch. 19 - Which of the following is not a way that humans...Ch. 19 - The first species to live on new land, such as...Ch. 19 - A symbiotic relationship where both of the...Ch. 19 - When an invasive species alters the community...Ch. 19 - Describe how a researcher would determine the size...Ch. 19 - Describe the growth at various parts of the...Ch. 19 - Give an example of how density-dependent and...Ch. 19 - Describe the age structures in rapidly growing...Ch. 19 - Describe the competitive exclusion principle and...Ch. 19 - Describe the potential effects when a keystone...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Converting a prairie to a farm field is an example of _________. a. overharvesting b. habitat loss c. exotic species d. climate changearrow_forwardThe first species to live on new land, such as that formed from volcanic lava, are called_________. a. climax community b. keystone species c. foundation species d. pioneer speciesarrow_forwardWhich two extinction risks may be a direct result of the pet trade? a. climate change and exotic species introduction b. habitat loss and overharvesting c. overharvesting and exotic species introduction d. habitat loss and climate changearrow_forward
- Which of the following is one of the biggest threats to biodiversity? A. Invasive species B. Land protection C. Ecological conservation D. Habitat restorationarrow_forwardWhy do moderate levels of disturbance result in an increase in community diversity?a) The resulting uniform habitat supports stability, which in turn supports diversity.b) Less-competitive species evolve strategies to compete with dominant species.c) Habitats are opened up for less competitive speciesd) Competively dominant species infrequently exclude less competitive species after a moderate disturbance.arrow_forwardWhich of the following is not true of a population of largepredators in a small reserve?a. The species may disappear from the reserve.b. The species will probably undergo a populationexplosion.c. The species will probably lose genetic diversity.d. The species may overeat its prey, causing a reduction inprey population.arrow_forward
- _____ is a term describing species that are in danger of becoming endangered. a. extinct b. extirpated c. endangered d. threatenedarrow_forwardWhat is the single greatest threat to biodiversity?(A) overharvesting of commercially important species(B) habitat alteration, fragmentation, and destruction(C) introduced species that compete with native species(D) novel pathogensarrow_forwardThe graph above is from a paper by Dave Tilman published in 1994. Which of the following statements is consistent with the graph? A) The results contradicts the intermediate disturbance hypothesis B) Increasing diversity increases community stability C) The results support the intermediate disturbance hypothesis.arrow_forward
- A keystone species is one whose removal from a community causes extinction of other species. How does this extinction happen?arrow_forwardRabbits are important grazers, maintaining some important grassland habitats. If a catastrophe were to reduce rabbit populations what would happen? * a. There would be more grass for the surviving rabbits b. The grassland would be invaded by trees and shrubs c. All of the abovearrow_forwardWhich activity would be most likely categorized as restoration ecology? a. Counting the number of fish species in a lake b. Determining the effects of traffic noise on singing robins c. Removing pollutants from the Hudson River d. Modeling the effects of climate change on the distribution of a plant e. Surveying genetic variation in a population of an endangered salamanderarrow_forward
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