Which kingdom does a living thing, capable of photosynthesis and possibly a moss, belong to?

The living thing described in the question, capable of photosynthesis and possibly a moss, belongs to the Plantae kingdom. This kingdom includes all plants, which are primarily characterized by their ability to perform photosynthesis—a process that uses sunlight to convert carbon dioxide and water into glucose and oxygen. Mosses are non-vascular plants that also fit within this category, as they absorb water and nutrients directly through their surfaces and thrive in moist environments.

In contrast, organisms in the Animalia kingdom are primarily heterotrophic, meaning they cannot perform photosynthesis but instead obtain their food by consuming other organisms. Fungi, including mushrooms and molds, are also distinct from plants as they absorb nutrients through decomposition rather than through photosynthesis. The Monera kingdom, which includes bacteria and archaea, consists of single-celled organisms that do not engage in photosynthesis in the manner that plants do. Overall, the unique ability to perform photosynthesis and the characteristics of moss clearly indicate that the living thing in question is classified in the Plantae kingdom.