Question Detail
Question
Which of the following protozoans is characterized by a constantly changing body shape due to the absence of a rigid covering?
Correct Answer
Option C is the correct answer.
Detailed Explanation
The text states, 'Body shape may be fixed (as in Paramecium and Euglena, which have a definite pellicle) or constantly changing (as in Amoeba, which lacks a rigid covering and continuously alters its shape).' Therefore, Amoeba fits this description.
Hint
Consider which protozoan is known for its 'false feet' and lack of a rigid outer layer.