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Unicellular organism :...

Unicellular organism :

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The organisms which are made up of only one cell is called unicellular organism.
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Read the following statements :- (i) Ernst Mayr, has been called "The Mendel of the 20^(th) century. (ii) All living organisms grow (iii) Unicellular organisms multiply by cell division (iv) Non-living object also exhibits metabolism How many statement is/are correct ?

Which of the following is not correct? (a) Robert Brown discovered the cell. (b) Schleiden and Schwann formulated the cell theory. (c) Virchow explained that cells are formed from pre-existing cells. (d) A unicellular organism carries out its life activities within a single cell.

Knowledge Check

  • A: Moss protenema resembles green algae. R: It develops unicellular sex organs.

    A
    A and R both are correct and R is correct explanation of A.
    B
    A and R are correct but R is not explanation of A.
    C
    A is correct and R is false.
    D
    A and R are false.

    • Similar Questions

    Explore conceptually related problems

    Multicellular organism :

    How are the modes for reproduction different in unicellular and multi-cellular organisms ?

    Both unicellular and multicellular organisms undergo mitosis. What are the differences, if any, observed in the process between the two ?

    Two kingdom system did not distinguish between the eukaryotes and prokaryotes, unicellular and multicelllular organisms and photosynthetic (Autotrophs) and non-photosynthetic (Heterotrophs) Organisms. These are demerits of two kingdom system. (True/False)

    What is called multicellular organism?

    Fragmentation is the simplest method of reproduction in unicellular animals like amoeba and leishmania.

    Unicellular fresh water organisms tend to get water through osmosis.

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