Question

which of the following microorganisms lack their own metabolic pathways
bacteria
protozoa
viruses
helminths

Explanation:

Viruses are acellular entities. They lack their own metabolic pathways. They rely on the host cell's machinery (including metabolic pathways) for processes like replication, synthesis of components etc. Bacteria have their own metabolic pathways (e.g., for respiration, fermentation). Protozoa (single - celled eukaryotes) also have their own metabolic capabilities for functions like obtaining energy. Helminths (multicellular parasites in some cases, but still have their own cellular and metabolic processes for survival, growth etc.)

Answer:

Viruses