An organism that is heterotrophic, reproduces sexually, is multicellular, and does not have cell walls belongs to the kingdom of C. Animalia.
The Kingdom of Animalia is a huge phylum of eukaryotic, multicellular organisms that live in heterotrophic environments. As a result, they rely on outside sources for nutrients. Animal cells lack a cell wall, which is found in plant cells, despite the fact that they are unable to create their own food, which is one of the most distinguishing traits of plants.
The majority of animals, with the exception of a few, are motile, which helps them to successfully respond to stimuli and find food, among other things. In general, animals are separated into two groups: vertebrates (animals with a backbone) and invertebrates (animals without a backbone) (animals that lack a backbone).
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