Question Detail
Question
Some protozoa, like Paramecium and Euglena, have a fixed body shape due to a definite pellicle. What characteristic allows Amoeba to constantly change its shape?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The text explains: '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).'
Hint
What structural component provides rigidity or flexibility to the cell surface?