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Which of these unicellular organisms has no definite shape?
  • a)
    amoeba
  • b)
    euglena
  • c)
    bacteria
  • d)
    paramecium
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Which of these unicellular organisms has no definite shape?a)amoebab)e...
Which of these unicellular organisms has no definite shape?

The correct answer is amoeba.

Explanation:


  • Amoeba: Amoeba is a type of unicellular organism that belongs to the group of protozoans. It has a flexible cell membrane, enabling it to change its shape constantly. As a result, amoeba does not have a definite shape.

  • Euglena: Euglena is another unicellular organism that possesses a definite shape. It is a flagellate, characterized by a long whip-like tail called a flagellum, which helps in its movement.

  • Bacteria: Bacteria are unicellular organisms that have a definite shape. They can be classified into different shapes such as spherical (cocci), rod-shaped (bacilli), or spiral (spirilla).

  • Paramecium: Paramecium is a unicellular organism that belongs to the group of ciliates. It has a definite shape, usually described as an elongated slipper or cigar shape.


In conclusion, among the given options, amoeba is the unicellular organism that does not have a definite shape.
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Which of these unicellular organisms has no definite shape?a)amoebab)euglenac)bacteriad)parameciumCorrect answer is option 'A'. Can you explain this answer?
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