How Well Do You Know Underwater Plants?

10 Questions
How Well Do You Know Underwater Plants?

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Questions and Answers
  • 1. 
    A group of  underwater plants that can survive both under the water and on the land are termed
    • A. 

      Helophytes

    • B. 

      Pleutons

    • C. 

      Macrophytes

    • D. 

      Ampiphytes

  • 2. 
    The most common adaptation of underwater plants is
    • A. 

      Parenchyma

    • B. 

      Collenchyma

    • C. 

      Tap root

    • D. 

      Aerenchyma

  • 3. 
    The principal factor that control the distribution of underwater plant is
    • A. 

      Salinity

    • B. 

      Grazing

    • C. 

      Flooding

    • D. 

      Abundance

  • 4. 
    A group of rosette plants which completes its entire lifecycle while submerged in water are called
    • A. 

      Pleuston

    • B. 

      Liverworts

    • C. 

      Bladderworts

    • D. 

      Isoetids

  • 5. 
    Generally, underwater plants are also called
    • A. 

      epiphytes

    • B. 

      Hydophytes

    • C. 

      Planktons

    • D. 

      Endophytes

  • 6. 
    Since seaweeds are multicellular marine algae and avascular, they are not
    • A. 

      Isoetids

    • B. 

      Elodeids

    • C. 

      Aquatic plants

    • D. 

      Nymphaeids

  • 7. 
    A typical example of plants that are not rooted and free to move about the surface of the water is 
    • A. 

      Nelumbo nucifera

    • B. 

      Nymphaea alba

    • C. 

      Liverworts

    • D. 

      Duck weed

  • 8. 
    Among others, an example of aquatic plants consumed by humans is
    • A. 

      Thalassia

    • B. 

      Ceratophyllum submersum

    • C. 

      Zostera

    • D. 

      Ipomea aquantica

  • 9. 
    Underwater plants are known to survive exclusively on
    • A. 

      Arid lands

    • B. 

      Wetlands

    • C. 

      Islands

    • D. 

      Thick lands

  • 10. 
    The concentration of underwater plants decrease with the depth of the water, as a  result of the
    • A. 

      High salt concentration

    • B. 

      Sea waves

    • C. 

      Minimal sunlight

    • D. 

      Numerous predators