Diversity In Living Organisms — Science STD 9 — Question

Characteristics of Kingdom Protista:

1. They include many kinds of unicellular eukaryotic organisms such as unicellular algae, protozoans and unicellular fungi.
2. They are found anywhere there is moisture.
3. They are single celled, but many live in a colonial setting (more or less independently).
4. Many are unicellular, but some are multicellular (Algae and fungus-like protists).
5. Some can live in very harsh environments.
6. Reproduction can be sexual (conjugation), asexual (binary fission), or a combination of both.
7. Some of these organisms use appendages, such as hair-like cilia (e.g. Paramecium) or whip-like flagellum (e.g. Euglena).
8. Their mode of nutrition can be autotrophic or heterotrophic.

Examples: Paramecium and Amoeba.