Question

Which protozoan is a connecting link between plants and animals?

• A. Entamoeba
• B. Paramoecium
• C. Euglena
• D. Monocystis

Answer 1

The correct option is C

Euglena

The correct option is C.

The explanation of the correct option:

1. Euglena is a connecting link between plant and animal as it has both plant and animal characters.
2. They have chloroplasts to perform photosynthesis, like plants.
3. They lack cell walls and perform heterotrophic nutrition, like animals.

The explanation of the incorrect options:

Option A:

Entamoeba is a parasite and is responsible for causing the disease, Amoebiasis.

Option B:

Paramecium is a single cell and free-living protozoans. Cilia are the hair-like structure covering the whole body and help in locomotion.

Option D:

Monocystis is the parasite and is the commonest protozoan genus to infect earthworms.

Final Answer: The protozoan which is a connecting link between plants and animals is Euglena.