Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 59, Problem 1A
Historically, island species have tended to become extinct faster than species living on a mainland. Which of the following reasons can be used to explain this phenomenon?
a. Island species have often evolved in the absence of predators and have no natural avoidance strategies.
b. Humans have introduced diseases and competitors to islands, which negatively affect island populations.
c. Island populations are usually smaller than mainland populations.
d. All of the choices are correct.
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Chapter 59 Solutions
Biology
Ch. 59 - Prob. 1UCh. 59 - The economic value of indirect ecosystem services...Ch. 59 - The amphibian decline is best described as a....Ch. 59 - Prob. 4UCh. 59 - When populations are drastically reduced in size,...Ch. 59 - A captive-breeding program followed by release to...Ch. 59 - Historically, island species have tended to become...Ch. 59 - Ninety-nine percent of all the species that ever...Ch. 59 - To effectively address the biodiversity crisis,...Ch. 59 - The introduction of a nonnative predator to an...
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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
- In populations subjected to high levels of predation a. individuals should invest little in reproduction so as to maximize their survival. b. individuals should produce few offspring and invest little in any of them. c. individuals should invest greatly in reproduction because their chance of surviving to another breeding season is low. d. individuals should stop reproducing altogether.arrow_forwardStudies of opossums in Georgia have found that individuals from a population on an offshore island have longer lifespans in captivity than individuals from mainland populations. What is a reasonable explanation for this pattern? Group of answer choices a. the island opossums are vampires b. the opossums from the island have a history of being kept in captivity c. he opossums on the island have a lower metabolic rate d. there are fewer predators on the island compared to the mainlandarrow_forwardslands are well known for having many endemic (unique) species. What is a likely explanation for this pattern? A. Humans bring partly or fully domesticated species with them when they arrive on islands. B. Colonizers encounter fewer competitors on an island, so they can diversify. C. Islands are more complex habitats than continents are, so they have more niches for specializations. D. Colonizers are likely to have more diversity than local populations and thus outcompete them. E. The type of organism that is a good colonizer has more than the average amount of genetic variability, so it's more likely to speciate.arrow_forward
- Arguments in favor of the overkill hypothesis of megafauna extinctions are a. Basically everywhere humans colonized, big animals went extinct b. Climate change similar to the end of the Pleistocene happened many times before, and there was no megafauna extinction c. In nearly all the Clovis kill sites in North America, mammoth or other megafauna are present d. All of the abovearrow_forwardA biologist determines the growth rate of a population of 198 frogs in a marsh near Beaverhill Lake, Alberta, to evaluate the quality of the environment. The researcher finds that, in one year, 34 were born, 86 died, 12 migrated into the marsh, and there was no emigration. a. frogs are considered an indicator species for the quality of the environment. Determine whether the growth rate of this population in one year is a cause for concern. if so, what might the concerns be?arrow_forwardYou arrive on an island that has not been previously studied by biologists. You discover a number of species of snails that bright colored shells and bodies with black bands. What type of species interaction is most likely to be the cause of natural selection for these colors? Group of answer choices a. predation b. competition c. mutualism d. commensalismarrow_forward
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- Which of the following terms best describes the biological scenario where species that look similar in allopatry look different in sympatry? a. Character displacement b. Tempo c. Fusion d. Post-zygotic barriersarrow_forwardThe main arguments against the overkill hypothesis of megafauna extinction are a. Lots of species other than megafauna went extinct b. Rapid climate change destroyed the habitat that the megafauna depended on c. Many megafauna in North America went extinct before humans arrived d. All of the abovearrow_forwardIdentify the term that best matches the definition or description given. a. selective advantage b. variation f. selective pressure g. artificial selection h. extinct i. c. monoculture d. mimicry e. adaptation fitness j. mutation 71. human selection of particular traits to modify a population 72. structural differences between individuals 73. environmental conditions that select for certain characteristics and select against other characteristics 74. changes to the genetic material of an organism 75. planting of one species in a large area 76. disappear completely from Earth 77. one species looks like another species 78. a behaviour that helps an individual survive and reproduce in a particular environment 79. a genetic advantage that improves an organism's chance of survival 80. genetic contribution to the next generation by successful reproductionarrow_forward
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