Because the mouth breaks down the food and the stomach uses acid to break food down even more...
Disposable thumbs, might be it... there are no other animals that really have fingers that can move move like humans. in not 100% sure tho
i hope this helped ❤❤
Answer;
-Pellicle
Explanation;
-Protist cells may contain a single nucleus or many nuclei; they range in size from microscopic to thousands of meters in area. Protists may have animal-like cell membranes, plant-like cell walls, or may be covered by a pellicle.
-On a paramecium's exterior is found the pellicle. The pellicle is stiff to maintain the paramecium's shape and provide stability but it is also flexible to allow movement. It also acts as an attachment site for external organelles such as cilia.
