Benthic Zone Quiz

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  • 1/10 Questions
    True or False? You would see the organism in the picture below in the benthic zone. - ProProfs

    True or False? You would see the organism in the picture below in the benthic zone.

    • True
    • False
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Benthic Zone Quiz - Quiz
About This Quiz

The deepest and darkest waters of the ocean are found in the benthic zone. Can you move past your fear of the dark to get all the answers correct? Let's see how you do!

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  • 2. 

    Why are there no photosynthetic plants in the benthic zone of the ocean?

    • No ground for the roots to embed themselves

    • No sunlight

    • Not enough chemicals

    • Not enough nutrients

    Correct Answer
    A. No sunlight
    Explanation
    Photosynthetic plants require sunlight to carry out the process of photosynthesis, which is essential for their survival and growth. The benthic zone of the ocean refers to the bottom of the ocean floor, which is characterized by low light levels or complete darkness. As a result, there is a lack of sunlight in this zone, making it unsuitable for photosynthetic plants to thrive. Without sunlight, these plants cannot produce energy through photosynthesis, leading to their absence in the benthic zone of the ocean.

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  • 3. 

    You walk into Lake Erie and your feet are squishing into the mud under the water. Your feet are touching the ______ zone.

    • Neritic

    • Benthic

    • Oceanic

    • Aphotic

    Correct Answer
    A. Benthic
    Explanation
    The correct answer is benthic. The benthic zone refers to the bottom of a body of water, including the sediment and organisms that live there. In this scenario, since the person's feet are sinking into the mud under the water, they are in contact with the benthic zone of Lake Erie.

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  • 4. 

    In what types of bodies of water would you find the benthic zone?

    • Ponds

    • Deep lakes

    • Oceans

    • Both B and C

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The benthic zone refers to the bottom or lowest level of a body of water, including the sediments and organisms that inhabit it. Ponds, deep lakes, and oceans all have a benthic zone, as they all have a bottom where sediments settle and various organisms live. Therefore, the correct answer is "All of the above" as all of these bodies of water contain a benthic zone.

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  • 5. 

    What is the distance range for the benthic zone?

    • From the surface of the water to 200 meters below

    • From 200 meters below to the ocean floor

    • From the lowtide mark to the continental shelf

    • The bottom of the ocean floor

    Correct Answer
    A. The bottom of the ocean floor
    Explanation
    The benthic zone refers to the bottom of the ocean floor, so the correct answer is "The bottom of the ocean floor." This zone starts from the lowest point of the ocean and extends downward. It is the deepest part of the ocean where organisms live and is typically characterized by low light, high pressure, and cold temperatures.

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  • 6. 

    Organisms that live in the benthic zone are

    • Producers.

    • Plants.

    • Scavengers.

    • Plankton.

    Correct Answer
    A. Scavengers.
    Explanation
    The correct answer is scavengers. Organisms that live in the benthic zone are primarily scavengers, which means they feed on dead or decaying organic matter. They play a crucial role in the ecosystem by breaking down and recycling nutrients, helping to maintain the balance of the benthic community. Producers, such as plants and plankton, are more commonly found in the photic zone where sunlight is available for photosynthesis.

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  • 7. 

    Deep sea submarines have discovered sponges and worm colonies that live in the bottom of the ocean. Where do these organisms get theri energy from?

    • The Sun

    • Deep sea fish bring them food

    • Bacteria that use energy from chemicals

    • None of the above

    Correct Answer
    A. Bacteria that use energy from chemicals
    Explanation
    Deep sea organisms such as sponges and worm colonies obtain their energy from bacteria that use energy from chemicals. These bacteria, known as chemosynthetic bacteria, are able to convert inorganic compounds, such as hydrogen sulfide or methane, into organic matter through a process called chemosynthesis. This provides a source of energy for the deep sea organisms, as sunlight cannot penetrate to the depths of the ocean where they live.

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  • 8. 
    True of False?You would see the organism in the picture below in the benthic zone? - ProProfs

    True of False?You would see the organism in the picture below in the benthic zone?

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The correct answer is True because the benthic zone refers to the lowest level of a body of water where organisms live on or near the bottom. Since the question states that there is an organism in the picture, it implies that the organism is living in the benthic zone.

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  • 9. 

    What is the main food source for organisms in the benthic zone?

    • Phytoplankton

    • Zooplankton

    • Detritus

    • Bread from humans

    Correct Answer
    A. Detritus
    Explanation
    Detritus refers to the dead organic matter that settles at the bottom of aquatic ecosystems. It includes decaying plant and animal material, as well as fecal matter. Organisms in the benthic zone, which is the bottom of a body of water, rely on detritus as their main food source. This organic matter provides nutrients and energy for various organisms, such as bacteria, worms, and bottom-dwelling fish. They break down the detritus, recycling its nutrients back into the ecosystem. Phytoplankton and zooplankton are typically found in the pelagic zone, not the benthic zone, and are not the primary food source for benthic organisms. The option "Bread from humans" is not a natural food source in the benthic zone.

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  • 10. 

    Sunlight reaches the benthic zone in

    • Ponds.

    • Deep lakes.

    • Ocean.

    • Nonsense! Sunlight never reaches the benthic zone.

    Correct Answer
    A. Ponds.
    Explanation
    Sunlight reaches the benthic zone in ponds because ponds are shallow bodies of water with clear water, allowing sunlight to penetrate to the bottom. In contrast, deep lakes and the ocean have deeper water and higher levels of turbidity, which prevent sunlight from reaching the benthic zone. The statement "Nonsense! Sunlight never reaches the benthic zone" is incorrect because sunlight can indeed reach the benthic zone in certain environments, such as ponds.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 30, 2010
    Quiz Created by
    Wames
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