Nonnative Species In Aquatic Ecosystems quiz

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  • 1/10 Questions

    What of the following is an example of a nonnative species?

    • Gypsy Moth
    • Hydrilla
    • Zebra Mussel
    • All of the above
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About This Quiz

Do you know about the nonnative species? Let's check your knowledge with this nonnative species in aquatic ecosystems quiz. When it comes to aquatic life or aquatic ecosystem, there are several nonnative species. In this quiz, you can test yourself on what you know about the existence of nonnative species in an ecosystem. All the best for a perfect score on this quiz. This quiz is a good source of learning also. You can share the quiz with others also and challenge them on scores.

Nonnative Species In Aquatic Ecosystems Quiz - Quiz

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  • 2. 

    Which of the following perfectly describes chemical species control?

    • Net barriers

    • Herbicides

    • Inspections

    • Mowing

    Correct Answer
    A. Herbicides
    Explanation
    Herbicides perfectly describe chemical species control because they are chemicals specifically designed to control or kill unwanted plants, commonly known as weeds. Herbicides are used in agriculture, gardening, and landscaping to prevent the growth and spread of unwanted plants, allowing for better control over the desired plant species. They work by inhibiting or disrupting the growth processes of plants, ultimately leading to their death or suppression. By selectively targeting and eliminating unwanted plants, herbicides help maintain the desired chemical species and prevent the overgrowth of unwanted vegetation.

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  • 3. 

    Aquatic environments are not at risk of receiving invasive species from ships that use ballast water.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Aquatic environments are at risk of receiving invasive species from ships that use ballast water. Ballast water is often taken on board by ships to maintain stability and is then discharged in different locations, which can introduce non-native species into new habitats. This can have detrimental effects on local ecosystems and biodiversity. Therefore, the statement that aquatic environments are not at risk is false.

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  • 4. 

    Nonnative species are always introduced unintentionally.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement "Nonnative species are always introduced unintentionally" is not true. Nonnative species can be introduced intentionally or unintentionally. Intentional introductions can occur when species are purposely brought to a new location for various reasons such as agriculture, horticulture, or for biological control of pests. Unintentional introductions can happen through human activities like accidental transport on ships, planes, or vehicles, or through the release of pets or aquarium species into the wild. Therefore, nonnative species can be introduced both intentionally and unintentionally.

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  • 5. 

    What are the organisms called that do not occur naturally in an area but are introduced as the result of human activities?

    • Native species

    • Non-native species

    • Invasive species

    • None of the above

    Correct Answer
    A. Non-native species
    Explanation
    Non-native species refers to organisms that are not naturally found in a specific area but have been introduced by human activities. These organisms can be plants, animals, or microorganisms that are brought in intentionally or accidentally. Non-native species can have negative impacts on the ecosystem, as they may outcompete native species for resources, disrupt the natural balance, and cause harm to the environment. Therefore, the correct answer is non-native species.

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  • 6. 

    Nonnative species disturb ecosystems by _______.

    • Disturbing the food chains

    • Increasing the biodiversity

    • Preventing the spread of disease

    • Increasing the native species

    Correct Answer
    A. Disturbing the food chains
    Explanation
    Nonnative species disturb ecosystems by disturbing the food chains. When nonnative species are introduced into an ecosystem, they can disrupt the natural balance of predator-prey relationships and compete with native species for resources. This disruption can lead to changes in population dynamics, loss of biodiversity, and potentially even the extinction of native species. By interrupting the flow of energy and resources through the food chains, nonnative species can have far-reaching and negative impacts on the overall functioning and stability of ecosystems.

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  • 7. 

    If invasive species are introduced to an ecosystem, it will result in an increase in biodiversity.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The introduction of invasive species to an ecosystem typically leads to a decrease in biodiversity rather than an increase. Invasive species often outcompete native species for resources, disrupt natural food chains, and can even cause the extinction of native species. This reduction in species diversity can have negative impacts on the overall health and functioning of the ecosystem. Therefore, the statement that invasive species result in an increase in biodiversity is false.

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  • 8. 

    Which of the following statements is not true about the nonnative species?

    • It is possible to introduce them within their natural range.

    • They can positively impact an ecosystem.

    • They can impact negatively impact an ecosystem.

    • A nonnative species can be an invasive species.

    Correct Answer
    A. It is possible to introduce them within their natural range.
    Explanation
    The statement "It is possible to introduce them within their natural range" is not true about nonnative species. Nonnative species are species that are introduced to an area outside of their natural range, either intentionally or unintentionally. Introducing them within their natural range would mean that they are already present in that area, which contradicts the definition of a nonnative species.

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  • 9. 

    Which of the following reasons does not apply to the rearing of non-native species outside of their natural habitats?

    • They are used for restocking programs.

    • They are commercially important.

    • They are used to replace native species.

    • None of the above

    Correct Answer
    A. None of the above
    Explanation
    The given reasons all apply to the rearing of non-native species outside of their natural habitats. Commercial importance, replacement of native species, and restocking programs are all valid reasons for rearing non-native species. Therefore, none of the above reasons do not apply to the rearing of non-native species outside of their natural habitats.

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  • 10. 

    In Hull fouling, how the nonnative species are introduced?

    • Intentionally

    • Non-intentionally

    • Land-based

    • None of the above

    Correct Answer
    A. Land-based
    Explanation
    Nonnative species can be introduced through various means, including intentional and unintentional introductions. However, in the context of hull fouling, which refers to the accumulation of marine organisms on the hulls of ships, the most likely way for nonnative species to be introduced is through land-based activities. This can occur when ships are docked or stored on land and then transported to different bodies of water, carrying nonnative species on their hulls. Therefore, the correct answer is "Land-based."

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  • Current Version
  • Dec 19, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 17, 2022
    Quiz Created by
    Sophia Smith
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