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basic science USS possible questions from kerala 7 th standard tll chapter 4

All 25 questions from this finished quiz, with the correct answer and explanation. Finished 10 Oct 2026, 10:28 pm IST.
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  1. 1. Mushrooms obtain nutrition from dead and decaying organic matter. This mode of nutrition is called:

    A. Parasitic

    B. Saprophytic

    C. Insectivorous

    D. Autotrophic

    Answer: B. Saprophytic

    Why: Organisms that feed on dead and decaying matter are saprophytes, and mushrooms are a common example.

  2. 2. Loranthus growing on a mango tree has green leaves but takes water and minerals from the host. Such a plant is called a:

    A. Total parasite

    B. Saprophyte

    C. Partial parasite

    D. Insectivorous plant

    Answer: C. Partial parasite

    Why: Loranthus can make its own food using its green leaves but depends on the host for water and minerals, so it is a partial parasite.

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