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Which kingdom is characterized by eukaryotic, multicellular organisms that are autotrophic and have cell walls made of cellulose?

  1. Animalia

  2. Fungi

  3. Plantae

  4. Protista

The correct answer is: Animalia

The kingdom that is characterized by eukaryotic, multicellular organisms that are autotrophic and have cell walls made of cellulose is Plantae. Organisms in this kingdom, which include plants, primarily perform photosynthesis to produce their own food, utilizing sunlight, water, and carbon dioxide. The presence of cellulose in their cell walls provides structural support and rigidity, which is essential for their growth and function as multicellular organisms. In contrast, the Animalia kingdom consists of eukaryotic, multicellular organisms that are heterotrophic and lack cell walls. Fungi, while eukaryotic and multicellular, are not autotrophic and have cell walls made of chitin. Protista includes a diverse group of mostly unicellular organisms and does not consistently fit the criteria mentioned in the question. Thus, Plantae is the appropriate kingdom that matches all of the specified characteristics.