Florida Biology EOC Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

The correct choice, Plantae, is characterized by organisms that are eukaryotic and multicellular, meaning their cells have a nucleus and they are made up of multiple cells. These organisms are also autotrophic, which means they can produce their own food through processes like photosynthesis, using sunlight to convert carbon dioxide and water into glucose and oxygen. Additionally, plants have cell walls made of cellulose, a complex carbohydrate that provides structural support.

In contrast, the Animalia kingdom consists of multicellular eukaryotic organisms that are predominantly heterotrophic, meaning they rely on other organisms for food. Fungi, while also eukaryotic and sometimes multicellular, absorb nutrients from organic material rather than being autotrophic. Protista includes a diverse group of mainly unicellular organisms, though some are multicellular, and they can be auto- or heterotrophic; however, they do not consistently have the structural characteristics that define plants, particularly the cellulose in their cell walls.