Ans.
Protists are unicellular or multicellular eukaryotic organisms, such as amoeba, paramecium, and euglena. Protists may be heterotrophic or autotrophic as some protists can synthesize their own food by using sunlight.
Generally, eukaryotic cells are ten times larger than prokaryotic cells. It means protists are also 10 times larger than bacterial cells.
Thus, correct options are:
-They are at least 10 times larger.
-They are eukaryotes.
-They consist of both single- and multi-celled organisms.
Protists are different form bacteria as bacteria are single-celled, prokaryotic organisms. Thus, the correct options are 'they are eukaryotes' and 'they consist of both single- and multi-celled organisms.
