Final answer:
To observe the cilia on the surface of a paramecium, the best device is a light microscope which allows for the detailed visualization of the tiny, hair-like structures and their movements.
Step-by-step explanation:
Observation of Cilia on Paramecium:
In order to observe the cilia on the surface of a paramecium, the best device to use is a microscope. Since cilia are short, hair-like structures found on the surface of these single-celled organisms and are involved in locomotion and feeding, they are better observed with light microscopy. Paramecium is known for its use of cilia to move and capture food particles, and to achieve comprehensive observation of such tiny structures, a microscope with sufficient magnifying power will be necessary. The high resolution and magnification will allow detailed visualization of these structures and their synchronous or wave-like action. Moreover, since paramecium is a protist ranging from 10 to 3,000 micrometers in length, studying the organization and functional aspects of its cilia would require a microscope that can clearly show the organized structure of the cilia in rows, tufts, or spirals.
Content loaded with this information is essential for a thorough study of paramecium. The microscope should also allow the observation of the organized cilia into a plate-like primitive mouth called an oral groove, through which the paramecium captures and digests bacteria.