Questions: Multiple Choice Question Which is not a method used in the identification of protozoa from clinical samples? Ecological niche Number of nuclei Method of motility Mode of reproduction

The answer is the first one: Ecological niche.

Explanation for each option:

1. Ecological niche: This is not a method used in the identification of protozoa from clinical samples. The ecological niche refers to the role and position a species has in its environment, including all its interactions with the biotic and abiotic factors. It is more related to the study of organisms in their natural habitats rather than their identification in clinical settings.

2. Number of nuclei: This is a method used in the identification of protozoa. Protozoa can have varying numbers of nuclei, and this characteristic can help differentiate between different types of protozoa.

3. Method of motility: This is a common method used in the identification of protozoa. Protozoa can move in different ways, such as using cilia, flagella, or pseudopodia, and these methods of motility are key characteristics used in their identification.

4. Mode of reproduction: This is also a method used in the identification of protozoa. Protozoa can reproduce in various ways, such as asexually through binary fission or sexually, and these modes of reproduction can help in their identification.

In summary, the ecological niche is not a method used for identifying protozoa in clinical samples, whereas the number of nuclei, method of motility, and mode of reproduction are relevant methods.