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Identify the incorrect statement regarding ecosystem boundaries.

  1. Ecosystem boundaries are always clearly defined and rigid.
  2. Geographical barriers like mountains can separate different ecosystems.
  3. Ecosystems frequently blend into one another rather than having sharp divisions.

    A1 only

    B1, 3

    C2 only

    D3 only

    Answer:

    A. 1 only

    Read Explanation:

    • Unlike political borders, ecosystem boundaries are often dynamic and permeable.

    • This fluidity is due to the continuous exchange of matter and energy between adjacent systems, leading to transitional zones called ecotones where characteristics of both blending ecosystems can be observed.

    • Delineating these boundaries precisely is a significant challenge in ecological studies, as these zones are ecologically distinct and important in their own right.


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    What are static water ecosystems called?
    നമ്മുടെ ആവാസവ്യവസ്ഥയിൽ ഊർജപ്രവാഹം നടക്കുന്നതെങ്ങനെ ?

    Which of the following statements accurately describes desert soils?

    1. Desert soils are formed under humid conditions.
    2. Leaching is a significant process in the formation of desert soils due to the presence of abundant water.
    3. The lack of organic matter results in pale coloration, such as pale grey and pale red.
    4. Desert soils are generally infertile and cannot support crop production even with irrigation.

      Select the statements that accurately define Nekton.

      1. Nekton are organisms that passively drift with water currents.
      2. This group consists of animals capable of swimming, possessing the strength to overcome water currents.
      3. Nekton are generally small and have limited mobility.
      4. The size of Nekton ranges from tiny swimming insects to the largest marine mammals like the blue whale.