Answer:
A. Kingdom Protista
Explanation:
Kingdom Protista contains mostly unicellular eukaryotes. However, a few are multicellular.
Some protists reproduce sexually using gametes, while others reproduce asexually by binary fission.
Some protists are autotrophic, while others are heterotrophic.
Protists are eukaryotic, as their cells have a nucleus and other membrane-bound organelles.
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In the five kingdom classification system, the kingdom Protista contains both unicellular and multicellular organism that exhibits both modes of reproduction. Thus, option A is correct.
Kingdom Protista is one of the kingdoms that has been constituted of the organisms that have single-celled and multicellular bodies and are classified under the eukaryotes.
They can show both the modes of reproduction as it includes alternation of generations, conjugation, and binary fission as seen in amoebas and Euglena.
They are autotrophic as they can produce food using chemosynthesis and photosynthesis as seen in Spirogyra. They also are heterotrophic and include sporozoans, paramecia, molds, etc.
Therefore, option A. kingdom Protista is correct.
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