Protists are microscopic organisms whose cell structure is eukaryotic. Cell membranes surround protists. These may be an outer covering of pellicle, cuticle shell or cellulose wall. It contains organelles like mitochondria, Golgi complex, endoplasmic reticulum, ribosomes etc.

Protists are microscopic organisms cell structure is eukaryotic. Protists is surrounded by cell membrane. These may be an outer covering of pellicle, cuticle shell or cellulose wall. It contains organelles like mitochondria, Golgi complex, endoplasmic reticulum, ribosomes etc.

They have typical a+z fibrils. Nucleus has typical structures porous nuclear envelope, chromatic nucleolus and nucleoplasm centrioles occur in a number of types. photosynthetic forms.

Contains chloroplasts with internal thylakoids.

The nucleus divides twice by mitosis its produce four nuclei. Two nuclei enlarge and become micronuclei and two become micronuclei, paramecium gets one macronucleus and two micronuclei.

Paramecium aurelia is a species of ciliate protozoan that belongs to the genus Paramecium. It is commonly found in freshwater environments and is widely studied due to its complex life cycle and genetic characteristics. One of the key features of Paramecium aurelia is the presence of micronuclei.

Micronuclei are small, compact nuclei that are involved in the sexual reproduction of Paramecium. They are distinct from the macronucleus, which is responsible for the day-to-day functions of the organism. During conjugation, two Paramecium individuals exchange genetic material through a temporary cytoplasmic bridge. This genetic exchange occurs between the micronuclei of the two individuals.

Paramecium aurelia has two micronuclei, which are involved in the process of genetic exchange during conjugation. This is in contrast to other species of Paramecium, such as Paramecium caudatum and Paramecium multimicronucleatum, which have a single micronucleus.

Paramecium caudatum is another species of ciliate protozoan that is commonly found in freshwater environments. It has a single micronucleus, which is involved in genetic exchange during conjugation. This species is often used in laboratory settings for various studies and experiments.

Paramecium multimicronucleatum is a species of Paramecium that, as the name suggests, has multiple micronuclei. This species is relatively rare and is not as extensively studied as Paramecium aurelia or Paramecium caudatum.

Balantidium coli is another type of ciliate protozoan, but it is distinct from Paramecium species. It is a parasitic organism that commonly infects the intestines of mammals, including humans. Balantidium coli has a single macronucleus and a single micronucleus.

In summary, the correct answer is Paramecium aurelia because it is the only species listed that has two micronuclei. Paramecium caudatum, Paramecium multimicronucleatum, and Balantidium coli have one micronucleus each.