Explanation:
In paramecium, the vacuole is not stationary. It is actually a contractile vacuole that helps regulate the water balance by periodically expelling excess water from the cell.

Here’s why the other statements are true:

A. It is slipper-shaped – Paramecium has a characteristic slipper-like shape.

B. The anterior end is blunt – The front (anterior) end of a paramecium is more blunt compared to the rear end.

C. The gullet is lined with cilia – The gullet, or oral groove, is lined with cilia that help in capturing food.

D. It has an anal pore – Paramecia have an anal pore where waste products are expelled after digestion.