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Q: Which of the following is an example of unicellular organism? I. Euglena II. Amoeba III. Paramecium
  • A. Only I and II
  • B. Only I and III
  • C. Only II and III
  • D. All options are correct
Correct Answer: Option D - Protozoa are simple and unicellular in composition, these animals are considered to be the first animals of the universe. In these animals propagation process is done by crypts, capsules or romans, while a respiration occurs by diffusion. Some examples of protozoa are Amoeba, Paramecium, Euglena and Trypanosoma, Plasmodium etc.
D. Protozoa are simple and unicellular in composition, these animals are considered to be the first animals of the universe. In these animals propagation process is done by crypts, capsules or romans, while a respiration occurs by diffusion. Some examples of protozoa are Amoeba, Paramecium, Euglena and Trypanosoma, Plasmodium etc.

Explanations:

Protozoa are simple and unicellular in composition, these animals are considered to be the first animals of the universe. In these animals propagation process is done by crypts, capsules or romans, while a respiration occurs by diffusion. Some examples of protozoa are Amoeba, Paramecium, Euglena and Trypanosoma, Plasmodium etc.