👉 The term "protostome" refers to a type of organism that has developed from a single cell. Protostomes are characterized by a single, specialized cell called a prokaryote, which is not capable of photosynthesis or other cellular processes. Instead, they rely on the energy produced by their own metabolic activity and are able to survive in environments with limited resources such as water and light. Some examples of protostomes include bacteria, archaea, and some types of fungi.
