Their cell wall.
The cell structure of the paramecium does not change.
A paramecium exchanges gases directly with its environment through the cell membrane.
I don’t know
Paramecium absorbs oxygen directly from its surroundings through a process called diffusion. Oxygen from the water enters the paramecium's cell membrane and diffuses into the cytoplasm, where it is used in cellular respiration to produce energy.
Paramecium obtains oxygen through the process of diffusion across its cell membrane from its surroundings, which is typically water in their natural habitat. Oxygen in the water dissolves into the cytoplasm of the paramecium and is used for cellular respiration to generate energy.
The protist that has an oral groove is Paramecium. The oral groove is a structure found in Paramecium used for feeding and taking in food particles. This ciliated protist sweeps food particles into the oral groove, where they are engulfed and digested.
A gullet on a paramecium is a structure that helps the organism ingest food particles by surrounding and engulfing them. It acts as a mouth for the paramecium, allowing it to take in nutrients from its environment.
contractile vacuole
Micronucleus is a structure of a paramecium that is analogous to a reserve library
Paramecium is single celled.
A pair of contractile vacuoles.
A paramecium typically has thousands of cells, which make up its single-celled organism structure. The cells in a paramecium are specialized to perform various functions, such as movement, feeding, and reproduction.