Chapter 22 Online Study Guide

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  • 1/14 Questions

    Read the case study on bats. Which of the following fruits is NOT a result of bat pollination?

    • Banannas
    • Figs
    • Dates
    • Strawberries
    • Mangos
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45 minutes for 14 questions

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  • 2. 

    From 22-1. According to the 2000 joint study be several scientific groups - apprxoimately what percentage of the worlds amphibians are threatened with extinction

    • 75%

    • 50%

    • 25%

    • 10%

    • 90%

    Correct Answer
    A. 25%
    Explanation
    According to a joint study conducted by several scientific groups in 2000, approximately 25% of the world's amphibians are threatened with extinction. This means that a significant portion of amphibian species are at risk of disappearing from the planet. The study highlights the urgent need for conservation efforts to protect these vulnerable creatures and their habitats.

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  • 3. 

    Read 22-6. Managing wildlife is critical to conservation biology. Managment plans are based on which of the following principles?

    • Ecological succession

    • Wildlife population dynamics

    • An understanding of the cover, food, water, space and other habitat needs of each species to be managed

    • The maximum sustained yield of a population, in which harvested individuals are not removed fast than they can be replaced through reproduction

    • All of the above are used in creating effective management plans

    Correct Answer
    A. All of the above are used in creating effective management plans
    Explanation
    Effective management plans for wildlife conservation are based on multiple principles. One principle is ecological succession, which refers to the predictable changes in species composition and community structure over time. Another principle is wildlife population dynamics, which involves studying the fluctuations in population size and understanding factors that influence population growth or decline. Additionally, management plans consider the habitat needs of each species, including cover, food, water, and space. Lastly, the principle of maximum sustained yield ensures that the harvest of individuals does not exceed the population's reproductive capacity. Therefore, all of these principles are used in creating effective management plans.

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  • 4. 

    Read the first page of Chapter 22. Where did the name "stool pigeon" come from?

    • Sewing the eyes of a passenger pigeon shut and tying it to a perch

    • Using a taxidermist to stuff a dead bird and set it on a perch

    • Using a fake bird along with it's mating call to attract other birds

    • Using the birds main predator to scare them into large flocks that are easy to shoot

    Correct Answer
    A. Sewing the eyes of a passenger pigeon shut and tying it to a perch
    Explanation
    The name "stool pigeon" came from sewing the eyes of a passenger pigeon shut and tying it to a perch.

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  • 5. 

    It doesn't take a rocket scientist to know that decisions reagrding an endangered species should be based on biology, NOT economic or political reasons. Unfortunatley decisions are normally made by rich politicians that know nothing about the animals or plants. What branch of the government is responsible for listing species as endangered and/or threatened?

    • USDA

    • FDA

    • USFWS

    • USDA

    • CITES

    Correct Answer
    A. USFWS
    Explanation
    The correct answer is USFWS. The USFWS, or the United States Fish and Wildlife Service, is responsible for listing species as endangered and/or threatened. This agency focuses on the conservation and management of fish, wildlife, and plants, and their decisions are based on biology rather than economic or political reasons. Unlike rich politicians, the USFWS has the expertise and knowledge about animals and plants to make informed decisions regarding endangered species.

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  • 6. 

    Read 22-2. Which of the following would best describe the disappearance of horned lizards from Fort Worth?

    • Biological extinction

    • Ecological extinction

    • Local extinction

    • Background extinction

    Correct Answer
    A. Local extinction
    Explanation
    The disappearance of horned lizards from Fort Worth would best be described as a local extinction. This means that the species is no longer present in a specific area, in this case, Fort Worth. It does not imply that the species is extinct globally or everywhere else, but only within the local region.

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  • 7. 

    Read 22-6. The population of white tailed deer in the United States went from 500,000 in 1900 to ___ in 2000.

    • 25-30 million

    • 1-5 million

    • 6-10 million

    • 12-16 million

    • The population has shrunk below 500,000

    Correct Answer
    A. 25-30 million
    Explanation
    The correct answer is 25-30 million. The question asks about the population of white-tailed deer in the United States in the year 2000. The answer choice 25-30 million indicates that the population of white-tailed deer in the United States had grown significantly from 500,000 in 1900 to a range of 25-30 million in 2000.

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  • 8. 

    Read 22-3. Which of the following is a NON  Utilitarian value of biodiversity?

    • Goods

    • Information

    • Option

    • Recreation

    • Bequest

    Correct Answer
    A. Bequest
    Explanation
    A bequest refers to the act of leaving something, usually property or money, to someone in a will. In the context of biodiversity, a bequest does not directly contribute to the utilitarian value of biodiversity, which is focused on the practical benefits it provides to humans such as goods, information, option, and recreation. Instead, a bequest represents a non-utilitarian value as it relates to the desire to preserve biodiversity for future generations or for its intrinsic value, rather than for any immediate practical benefits.

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  • 9. 

    Read 22-4. Feral pigs are a huge problem throughout the US, and Texas is no exception. It is legal to kill hogs at anytime of the year, except on wildlife management areas in Texas. For some bizarre reason the Wildlife Managment Areas in Texas only allow harvesting of feral hogs during seasons! These are introduced, incredibly destructive nonnative species - so this makes absolutely no sense. Approximately how long ago do we think domesticated pigs (which escaped becoming feral pigs) arrived in the U.S?

    • 200 years ago

    • 100 years ago

    • 450 years ago

    • 300 years ago

    • 275 years ago

    Correct Answer
    A. 450 years ago
    Explanation
    The correct answer is 450 years ago. The passage mentions that domesticated pigs arrived in the U.S. and eventually became feral pigs. Since the passage does not provide an exact time frame, we can infer that it was approximately 450 years ago based on the options given.

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  • 10. 

    From 22-1. Which of the following factors does not decrease biodiversity

    • Introduction of alien species

    • Geographic isolation

    • Environmental stress

    • Moderate environmental disturbances

    • Extreme envrionmental conditions

    Correct Answer
    A. Moderate environmental disturbances
    Explanation
    Moderate environmental disturbances do not decrease biodiversity because they can actually promote it. These disturbances create opportunities for new species to colonize and thrive in the changed environment. They can also prevent dominant species from monopolizing resources, allowing a greater variety of species to coexist. Additionally, moderate disturbances can create diverse habitats with a range of microclimates, providing niches for different species to inhabit. Therefore, moderate environmental disturbances can enhance biodiversity rather than decrease it.

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  • 11. 

    Read 22-5. There is some very important legislation reagrding endangered animals. Which of the following laws would you be breaking if you carried a feather of the endangered California Condor from Michigan into Ohio?

    • Endangered species act

    • Montreal protocol

    • Kyoto treaty

    • Lacey act

    • USFWS

    Correct Answer
    A. Lacey act
    Explanation
    The Lacey Act is the correct answer because it is a U.S. federal law that prohibits the trade of wildlife, fish, and plants that have been illegally taken, possessed, transported, or sold. The act aims to protect both domestic and foreign species, including endangered animals like the California Condor. Carrying a feather of the endangered condor from one state to another without proper authorization would be a violation of the Lacey Act.

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  • 12. 

    Read Connections on page 553. What is expected to pose the greatest threat to freshwater ecosystems (especially lakes)

    • Pollution

    • Loss of wetlands

    • Invasive species

    • Panthers

    • Overharvesting

    Correct Answer
    A. Invasive species
    Explanation
    Invasive species are expected to pose the greatest threat to freshwater ecosystems, especially lakes. These species, which are non-native and introduced into an ecosystem, can outcompete native species for resources and disrupt the balance of the ecosystem. They can cause significant damage to the habitat, alter the food chain, and reduce biodiversity. Invasive species can reproduce rapidly and spread quickly, making it difficult to control their population and mitigate their impact on freshwater ecosystems.

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  • 13. 

    Which of the following is not an endangered or threatened species shown in figure 22-7?

    • Humpback whale

    • Hawksbill sea turtle

    • Kirtlands warblers

    • Gray wolf

    • Smallmouth salamander

    Correct Answer
    A. Smallmouth salamander
    Explanation
    The smallmouth salamander is not an endangered or threatened species shown in figure 22-7. This means that the other species mentioned in the question - the humpback whale, hawksbill sea turtle, Kirtland's warblers, and gray wolf - are all endangered or threatened.

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  • 14. 

    Read the section on Kudzu and answer the critical thinking question(s). Answer in at least 4 sentences.

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  • Mar 20, 2023
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  • Feb 10, 2012
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    AndrewBrinker

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